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Finding the Fourth Proportional to 153,434, 230,153.88 and 42,628.88

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Solution

The fourth proportional to 153,434, 230,153.88 and 42,628.88 is: 63,944.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,434 : 230,153.88 = 42,628.88 : x
  2. Step 2: Convert to fraction form
    153,434/230,153.88 = 42,628.88/x
  3. Step 3: Cross multiply
    153,434x = 230,153.88 × 42,628.88
  4. Step 4: Simplify right side
    153,434x = 9,811,202,132.05
  5. Step 5: Solve for x
    x = 9,811,202,132.05/153,434
  6. Step 6: Final answer
    x = 63,944.12

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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.