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Finding the Fourth Proportional to 402,230.60, 603,564.60 and 165,597.20

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Solution

The fourth proportional to 402,230.60, 603,564.60 and 165,597.20 is: 248,485.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,230.60 : 603,564.60 = 165,597.20 : x
  2. Step 2: Convert to fraction form
    402,230.60/603,564.60 = 165,597.20/x
  3. Step 3: Cross multiply
    402,230.60x = 603,564.60 × 165,597.20
  4. Step 4: Simplify right side
    402,230.60x = 99,948,607,779.12
  5. Step 5: Solve for x
    x = 99,948,607,779.12/402,230.60
  6. Step 6: Final answer
    x = 248,485.84

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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.