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Finding the Fourth Proportional to 153,760.20, 230,640.30 and 147,855.30

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Solution

The fourth proportional to 153,760.20, 230,640.30 and 147,855.30 is: 221,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,760.20 : 230,640.30 = 147,855.30 : x
  2. Step 2: Convert to fraction form
    153,760.20/230,640.30 = 147,855.30/x
  3. Step 3: Cross multiply
    153,760.20x = 230,640.30 × 147,855.30
  4. Step 4: Simplify right side
    153,760.20x = 34,101,390,748.59
  5. Step 5: Solve for x
    x = 34,101,390,748.59/153,760.20
  6. Step 6: Final answer
    x = 221,782.95

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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.