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Finding the Fourth Proportional to 247,595.46, 341,699.76 and 138,709.32

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Solution

The fourth proportional to 247,595.46, 341,699.76 and 138,709.32 is: 191,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,595.46 : 341,699.76 = 138,709.32 : x
  2. Step 2: Convert to fraction form
    247,595.46/341,699.76 = 138,709.32/x
  3. Step 3: Cross multiply
    247,595.46x = 341,699.76 × 138,709.32
  4. Step 4: Simplify right side
    247,595.46x = 47,396,941,353.76
  5. Step 5: Solve for x
    x = 47,396,941,353.76/247,595.46
  6. Step 6: Final answer
    x = 191,428.96

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1.5x scale

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.