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Finding the Fourth Proportional to 239,700.30, 359,536.40 and 89,928.09

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Solution

The fourth proportional to 239,700.30, 359,536.40 and 89,928.09 is: 134,886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,700.30 : 359,536.40 = 89,928.09 : x
  2. Step 2: Convert to fraction form
    239,700.30/359,536.40 = 89,928.09/x
  3. Step 3: Cross multiply
    239,700.30x = 359,536.40 × 89,928.09
  4. Step 4: Simplify right side
    239,700.30x = 32,332,421,737.48
  5. Step 5: Solve for x
    x = 32,332,421,737.48/239,700.30
  6. Step 6: Final answer
    x = 134,886.86

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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.