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Finding the Fourth Proportional to 292,307.74, 438,294.14 and 89,851.12

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Solution

The fourth proportional to 292,307.74, 438,294.14 and 89,851.12 is: 134,725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,307.74 : 438,294.14 = 89,851.12 : x
  2. Step 2: Convert to fraction form
    292,307.74/438,294.14 = 89,851.12/x
  3. Step 3: Cross multiply
    292,307.74x = 438,294.14 × 89,851.12
  4. Step 4: Simplify right side
    292,307.74x = 39,381,220,625.79
  5. Step 5: Solve for x
    x = 39,381,220,625.79/292,307.74
  6. Step 6: Final answer
    x = 134,725.21

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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.