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Finding the Fourth Proportional to 247,082, 341,009.76 and 156,446.40

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Solution

The fourth proportional to 247,082, 341,009.76 and 156,446.40 is: 215,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,082 : 341,009.76 = 156,446.40 : x
  2. Step 2: Convert to fraction form
    247,082/341,009.76 = 156,446.40/x
  3. Step 3: Cross multiply
    247,082x = 341,009.76 × 156,446.40
  4. Step 4: Simplify right side
    247,082x = 53,349,749,316.86
  5. Step 5: Solve for x
    x = 53,349,749,316.86/247,082
  6. Step 6: Final answer
    x = 215,919.21

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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.