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Finding the Fourth Proportional to 561,054.18, 841,691.03 and 206,070.87

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Solution

The fourth proportional to 561,054.18, 841,691.03 and 206,070.87 is: 309,146.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,054.18 : 841,691.03 = 206,070.87 : x
  2. Step 2: Convert to fraction form
    561,054.18/841,691.03 = 206,070.87/x
  3. Step 3: Cross multiply
    561,054.18x = 841,691.03 × 206,070.87
  4. Step 4: Simplify right side
    561,054.18x = 173,448,001,792.94
  5. Step 5: Solve for x
    x = 173,448,001,792.94/561,054.18
  6. Step 6: Final answer
    x = 309,146.62

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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.