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Finding the Fourth Proportional to 153,444.80, 230,019.56 and 78,600.19

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Solution

The fourth proportional to 153,444.80, 230,019.56 and 78,600.19 is: 117,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,444.80 : 230,019.56 = 78,600.19 : x
  2. Step 2: Convert to fraction form
    153,444.80/230,019.56 = 78,600.19/x
  3. Step 3: Cross multiply
    153,444.80x = 230,019.56 × 78,600.19
  4. Step 4: Simplify right side
    153,444.80x = 18,079,579,969.62
  5. Step 5: Solve for x
    x = 18,079,579,969.62/153,444.80
  6. Step 6: Final answer
    x = 117,824.65

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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.