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Finding the Fourth Proportional to 153,826.80, 230,869.80 and 75,008.40

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Solution

The fourth proportional to 153,826.80, 230,869.80 and 75,008.40 is: 112,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,826.80 : 230,869.80 = 75,008.40 : x
  2. Step 2: Convert to fraction form
    153,826.80/230,869.80 = 75,008.40/x
  3. Step 3: Cross multiply
    153,826.80x = 230,869.80 × 75,008.40
  4. Step 4: Simplify right side
    153,826.80x = 17,317,174,306.32
  5. Step 5: Solve for x
    x = 17,317,174,306.32/153,826.80
  6. Step 6: Final answer
    x = 112,575.80

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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.