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Finding the Fourth Proportional to 459,218.66, 633,729.29 and 252,495.78

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Solution

The fourth proportional to 459,218.66, 633,729.29 and 252,495.78 is: 348,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,218.66 : 633,729.29 = 252,495.78 : x
  2. Step 2: Convert to fraction form
    459,218.66/633,729.29 = 252,495.78/x
  3. Step 3: Cross multiply
    459,218.66x = 633,729.29 × 252,495.78
  4. Step 4: Simplify right side
    459,218.66x = 160,013,971,387.40
  5. Step 5: Solve for x
    x = 160,013,971,387.40/459,218.66
  6. Step 6: Final answer
    x = 348,448.32

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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.