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Finding the Fourth Proportional to 347,200.90, 479,409.02 and 266,500.60

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Solution

The fourth proportional to 347,200.90, 479,409.02 and 266,500.60 is: 367,979.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,200.90 : 479,409.02 = 266,500.60 : x
  2. Step 2: Convert to fraction form
    347,200.90/479,409.02 = 266,500.60/x
  3. Step 3: Cross multiply
    347,200.90x = 479,409.02 × 266,500.60
  4. Step 4: Simplify right side
    347,200.90x = 127,762,791,475.41
  5. Step 5: Solve for x
    x = 127,762,791,475.41/347,200.90
  6. Step 6: Final answer
    x = 367,979.44

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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.