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Finding the Fourth Proportional to 658,208, 987,312 and 159,572

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Solution

The fourth proportional to 658,208, 987,312 and 159,572 is: 239,358

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,208 : 987,312 = 159,572 : x
  2. Step 2: Convert to fraction form
    658,208/987,312 = 159,572/x
  3. Step 3: Cross multiply
    658,208x = 987,312 × 159,572
  4. Step 4: Simplify right side
    658,208x = 157,547,350,464
  5. Step 5: Solve for x
    x = 157,547,350,464/658,208
  6. Step 6: Final answer
    x = 239,358

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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.