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Finding the Fourth Proportional to 460,200.60, 690,300.90 and 342,102.60

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Solution

The fourth proportional to 460,200.60, 690,300.90 and 342,102.60 is: 513,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,200.60 : 690,300.90 = 342,102.60 : x
  2. Step 2: Convert to fraction form
    460,200.60/690,300.90 = 342,102.60/x
  3. Step 3: Cross multiply
    460,200.60x = 690,300.90 × 342,102.60
  4. Step 4: Simplify right side
    460,200.60x = 236,153,732,672.34
  5. Step 5: Solve for x
    x = 236,153,732,672.34/460,200.60
  6. Step 6: Final answer
    x = 513,153.90

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Similar ratio
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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.