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Finding the Fourth Proportional to 261,792.20, 392,484.18 and 121,532.60

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Solution

The fourth proportional to 261,792.20, 392,484.18 and 121,532.60 is: 182,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,792.20 : 392,484.18 = 121,532.60 : x
  2. Step 2: Convert to fraction form
    261,792.20/392,484.18 = 121,532.60/x
  3. Step 3: Cross multiply
    261,792.20x = 392,484.18 × 121,532.60
  4. Step 4: Simplify right side
    261,792.20x = 47,699,622,854.27
  5. Step 5: Solve for x
    x = 47,699,622,854.27/261,792.20
  6. Step 6: Final answer
    x = 182,204.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.