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Finding the Fourth Proportional to 230,534.70, 318,130.36 and 127,168.64

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Solution

The fourth proportional to 230,534.70, 318,130.36 and 127,168.64 is: 175,488.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,534.70 : 318,130.36 = 127,168.64 : x
  2. Step 2: Convert to fraction form
    230,534.70/318,130.36 = 127,168.64/x
  3. Step 3: Cross multiply
    230,534.70x = 318,130.36 × 127,168.64
  4. Step 4: Simplify right side
    230,534.70x = 40,456,205,223.91
  5. Step 5: Solve for x
    x = 40,456,205,223.91/230,534.70
  6. Step 6: Final answer
    x = 175,488.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.