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Finding the Fourth Proportional to 247,294.08, 341,288.51 and 155,428.31

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Solution

The fourth proportional to 247,294.08, 341,288.51 and 155,428.31 is: 214,505.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,294.08 : 341,288.51 = 155,428.31 : x
  2. Step 2: Convert to fraction form
    247,294.08/341,288.51 = 155,428.31/x
  3. Step 3: Cross multiply
    247,294.08x = 341,288.51 × 155,428.31
  4. Step 4: Simplify right side
    247,294.08x = 53,045,893,848.13
  5. Step 5: Solve for x
    x = 53,045,893,848.13/247,294.08
  6. Step 6: Final answer
    x = 214,505.31

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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.