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Finding the Fourth Proportional to 424,649, 637,071.92 and 144,166.26

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Solution

The fourth proportional to 424,649, 637,071.92 and 144,166.26 is: 216,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,649 : 637,071.92 = 144,166.26 : x
  2. Step 2: Convert to fraction form
    424,649/637,071.92 = 144,166.26/x
  3. Step 3: Cross multiply
    424,649x = 637,071.92 × 144,166.26
  4. Step 4: Simplify right side
    424,649x = 91,844,276,057.42
  5. Step 5: Solve for x
    x = 91,844,276,057.42/424,649
  6. Step 6: Final answer
    x = 216,282.80

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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.