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Finding the Fourth Proportional to 153,700.80, 230,531.76 and 48,530.40

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Solution

The fourth proportional to 153,700.80, 230,531.76 and 48,530.40 is: 72,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,700.80 : 230,531.76 = 48,530.40 : x
  2. Step 2: Convert to fraction form
    153,700.80/230,531.76 = 48,530.40/x
  3. Step 3: Cross multiply
    153,700.80x = 230,531.76 × 48,530.40
  4. Step 4: Simplify right side
    153,700.80x = 11,187,798,525.50
  5. Step 5: Solve for x
    x = 11,187,798,525.50/153,700.80
  6. Step 6: Final answer
    x = 72,789.46

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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.