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Finding the Fourth Proportional to 247,109.12, 341,010.87 and 133,931.87

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Solution

The fourth proportional to 247,109.12, 341,010.87 and 133,931.87 is: 184,826.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,109.12 : 341,010.87 = 133,931.87 : x
  2. Step 2: Convert to fraction form
    247,109.12/341,010.87 = 133,931.87/x
  3. Step 3: Cross multiply
    247,109.12x = 341,010.87 × 133,931.87
  4. Step 4: Simplify right side
    247,109.12x = 45,672,223,509.43
  5. Step 5: Solve for x
    x = 45,672,223,509.43/247,109.12
  6. Step 6: Final answer
    x = 184,826.13

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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.