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Finding the Fourth Proportional to 342,598.02, 472,728.87 and 215,182.86

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Solution

The fourth proportional to 342,598.02, 472,728.87 and 215,182.86 is: 296,916.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,598.02 : 472,728.87 = 215,182.86 : x
  2. Step 2: Convert to fraction form
    342,598.02/472,728.87 = 215,182.86/x
  3. Step 3: Cross multiply
    342,598.02x = 472,728.87 × 215,182.86
  4. Step 4: Simplify right side
    342,598.02x = 101,723,150,251.17
  5. Step 5: Solve for x
    x = 101,723,150,251.17/342,598.02
  6. Step 6: Final answer
    x = 296,916.92

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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.