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Finding the Fourth Proportional to 347,332.80, 521,261.60 and 254,079.12

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Solution

The fourth proportional to 347,332.80, 521,261.60 and 254,079.12 is: 381,310.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,332.80 : 521,261.60 = 254,079.12 : x
  2. Step 2: Convert to fraction form
    347,332.80/521,261.60 = 254,079.12/x
  3. Step 3: Cross multiply
    347,332.80x = 521,261.60 × 254,079.12
  4. Step 4: Simplify right side
    347,332.80x = 132,441,688,617.79
  5. Step 5: Solve for x
    x = 132,441,688,617.79/347,332.80
  6. Step 6: Final answer
    x = 381,310.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.