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Finding the Fourth Proportional to 245,423.70, 368,135.55 and 243,674.10

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Solution

The fourth proportional to 245,423.70, 368,135.55 and 243,674.10 is: 365,511.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,423.70 : 368,135.55 = 243,674.10 : x
  2. Step 2: Convert to fraction form
    245,423.70/368,135.55 = 243,674.10/x
  3. Step 3: Cross multiply
    245,423.70x = 368,135.55 × 243,674.10
  4. Step 4: Simplify right side
    245,423.70x = 89,705,098,824.26
  5. Step 5: Solve for x
    x = 89,705,098,824.26/245,423.70
  6. Step 6: Final answer
    x = 365,511.15

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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.