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Finding the Fourth Proportional to 664,442.10, 996,663.15 and 243,663.30

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Solution

The fourth proportional to 664,442.10, 996,663.15 and 243,663.30 is: 365,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,442.10 : 996,663.15 = 243,663.30 : x
  2. Step 2: Convert to fraction form
    664,442.10/996,663.15 = 243,663.30/x
  3. Step 3: Cross multiply
    664,442.10x = 996,663.15 × 243,663.30
  4. Step 4: Simplify right side
    664,442.10x = 242,850,232,117.40
  5. Step 5: Solve for x
    x = 242,850,232,117.40/664,442.10
  6. Step 6: Final answer
    x = 365,494.95

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.