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Finding the Fourth Proportional to 153,937.20, 230,905.80 and 146,720.10

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Solution

The fourth proportional to 153,937.20, 230,905.80 and 146,720.10 is: 220,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,937.20 : 230,905.80 = 146,720.10 : x
  2. Step 2: Convert to fraction form
    153,937.20/230,905.80 = 146,720.10/x
  3. Step 3: Cross multiply
    153,937.20x = 230,905.80 × 146,720.10
  4. Step 4: Simplify right side
    153,937.20x = 33,878,522,066.58
  5. Step 5: Solve for x
    x = 33,878,522,066.58/153,937.20
  6. Step 6: Final answer
    x = 220,080.15

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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.