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Finding the Fourth Proportional to 247,666.72, 341,867.28 and 147,064

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Solution

The fourth proportional to 247,666.72, 341,867.28 and 147,064 is: 203,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,666.72 : 341,867.28 = 147,064 : x
  2. Step 2: Convert to fraction form
    247,666.72/341,867.28 = 147,064/x
  3. Step 3: Cross multiply
    247,666.72x = 341,867.28 × 147,064
  4. Step 4: Simplify right side
    247,666.72x = 50,276,369,665.92
  5. Step 5: Solve for x
    x = 50,276,369,665.92/247,666.72
  6. Step 6: Final answer
    x = 203,000.10

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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.