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Finding the Fourth Proportional to 259,952.64, 390,084.32 and 238,801.92

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Solution

The fourth proportional to 259,952.64, 390,084.32 and 238,801.92 is: 358,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,952.64 : 390,084.32 = 238,801.92 : x
  2. Step 2: Convert to fraction form
    259,952.64/390,084.32 = 238,801.92/x
  3. Step 3: Cross multiply
    259,952.64x = 390,084.32 × 238,801.92
  4. Step 4: Simplify right side
    259,952.64x = 93,152,884,577.89
  5. Step 5: Solve for x
    x = 93,152,884,577.89/259,952.64
  6. Step 6: Final answer
    x = 358,345.60

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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.