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Finding the Fourth Proportional to 318,532.66, 477,466.84 and 129,123.76

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Solution

The fourth proportional to 318,532.66, 477,466.84 and 129,123.76 is: 193,551.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,532.66 : 477,466.84 = 129,123.76 : x
  2. Step 2: Convert to fraction form
    318,532.66/477,466.84 = 129,123.76/x
  3. Step 3: Cross multiply
    318,532.66x = 477,466.84 × 129,123.76
  4. Step 4: Simplify right side
    318,532.66x = 61,652,314,135.66
  5. Step 5: Solve for x
    x = 61,652,314,135.66/318,532.66
  6. Step 6: Final answer
    x = 193,551.00

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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.