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Finding the Fourth Proportional to 607,612.66, 910,855.60 and 208,158.53

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Solution

The fourth proportional to 607,612.66, 910,855.60 and 208,158.53 is: 312,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,612.66 : 910,855.60 = 208,158.53 : x
  2. Step 2: Convert to fraction form
    607,612.66/910,855.60 = 208,158.53/x
  3. Step 3: Cross multiply
    607,612.66x = 910,855.60 × 208,158.53
  4. Step 4: Simplify right side
    607,612.66x = 189,602,357,663.59
  5. Step 5: Solve for x
    x = 189,602,357,663.59/607,612.66
  6. Step 6: Final answer
    x = 312,044.78

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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.