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Finding the Fourth Proportional to 259,411.68, 387,931.68 and 188,572.32

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Solution

The fourth proportional to 259,411.68, 387,931.68 and 188,572.32 is: 281,996.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,411.68 : 387,931.68 = 188,572.32 : x
  2. Step 2: Convert to fraction form
    259,411.68/387,931.68 = 188,572.32/x
  3. Step 3: Cross multiply
    259,411.68x = 387,931.68 × 188,572.32
  4. Step 4: Simplify right side
    259,411.68x = 73,153,176,899.10
  5. Step 5: Solve for x
    x = 73,153,176,899.10/259,411.68
  6. Step 6: Final answer
    x = 281,996.47

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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.