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Finding the Fourth Proportional to 488,000.40, 732,120.60 and 168,157.20

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Solution

The fourth proportional to 488,000.40, 732,120.60 and 168,157.20 is: 252,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,000.40 : 732,120.60 = 168,157.20 : x
  2. Step 2: Convert to fraction form
    488,000.40/732,120.60 = 168,157.20/x
  3. Step 3: Cross multiply
    488,000.40x = 732,120.60 × 168,157.20
  4. Step 4: Simplify right side
    488,000.40x = 123,111,350,158.32
  5. Step 5: Solve for x
    x = 123,111,350,158.32/488,000.40
  6. Step 6: Final answer
    x = 252,277.15

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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.