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Finding the Fourth Proportional to 153,653.76, 230,480.13 and 71,486.75

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Solution

The fourth proportional to 153,653.76, 230,480.13 and 71,486.75 is: 107,229.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,653.76 : 230,480.13 = 71,486.75 : x
  2. Step 2: Convert to fraction form
    153,653.76/230,480.13 = 71,486.75/x
  3. Step 3: Cross multiply
    153,653.76x = 230,480.13 × 71,486.75
  4. Step 4: Simplify right side
    153,653.76x = 16,476,276,277.55
  5. Step 5: Solve for x
    x = 16,476,276,277.55/153,653.76
  6. Step 6: Final answer
    x = 107,229.89

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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.