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Finding the Fourth Proportional to 402,210.60, 603,534.60 and 165,577.20

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Solution

The fourth proportional to 402,210.60, 603,534.60 and 165,577.20 is: 248,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,210.60 : 603,534.60 = 165,577.20 : x
  2. Step 2: Convert to fraction form
    402,210.60/603,534.60 = 165,577.20/x
  3. Step 3: Cross multiply
    402,210.60x = 603,534.60 × 165,577.20
  4. Step 4: Simplify right side
    402,210.60x = 99,931,569,171.12
  5. Step 5: Solve for x
    x = 99,931,569,171.12/402,210.60
  6. Step 6: Final answer
    x = 248,455.83

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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.