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Finding the Fourth Proportional to 291,781.66, 402,650.66 and 162,724.06

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Solution

The fourth proportional to 291,781.66, 402,650.66 and 162,724.06 is: 224,554.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,781.66 : 402,650.66 = 162,724.06 : x
  2. Step 2: Convert to fraction form
    291,781.66/402,650.66 = 162,724.06/x
  3. Step 3: Cross multiply
    291,781.66x = 402,650.66 × 162,724.06
  4. Step 4: Simplify right side
    291,781.66x = 65,520,948,802.09
  5. Step 5: Solve for x
    x = 65,520,948,802.09/291,781.66
  6. Step 6: Final answer
    x = 224,554.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.