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Finding the Fourth Proportional to 239,421.60, 359,103.60 and 99,165.60

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Solution

The fourth proportional to 239,421.60, 359,103.60 and 99,165.60 is: 148,736.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,421.60 : 359,103.60 = 99,165.60 : x
  2. Step 2: Convert to fraction form
    239,421.60/359,103.60 = 99,165.60/x
  3. Step 3: Cross multiply
    239,421.60x = 359,103.60 × 99,165.60
  4. Step 4: Simplify right side
    239,421.60x = 35,610,723,956.16
  5. Step 5: Solve for x
    x = 35,610,723,956.16/239,421.60
  6. Step 6: Final answer
    x = 148,736.47

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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.