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Finding the Fourth Proportional to 153,859.72, 230,397.54 and 130,240.12

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Solution

The fourth proportional to 153,859.72, 230,397.54 and 130,240.12 is: 195,028.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,859.72 : 230,397.54 = 130,240.12 : x
  2. Step 2: Convert to fraction form
    153,859.72/230,397.54 = 130,240.12/x
  3. Step 3: Cross multiply
    153,859.72x = 230,397.54 × 130,240.12
  4. Step 4: Simplify right side
    153,859.72x = 30,007,003,257.30
  5. Step 5: Solve for x
    x = 30,007,003,257.30/153,859.72
  6. Step 6: Final answer
    x = 195,028.32

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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.