Home / 231,729.80-347,508.30-91,459.40

Finding the Fourth Proportional to 231,729.80, 347,508.30 and 91,459.40

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Solution

The fourth proportional to 231,729.80, 347,508.30 and 91,459.40 is: 137,155.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,729.80 : 347,508.30 = 91,459.40 : x
  2. Step 2: Convert to fraction form
    231,729.80/347,508.30 = 91,459.40/x
  3. Step 3: Cross multiply
    231,729.80x = 347,508.30 × 91,459.40
  4. Step 4: Simplify right side
    231,729.80x = 31,782,900,613.02
  5. Step 5: Solve for x
    x = 31,782,900,613.02/231,729.80
  6. Step 6: Final answer
    x = 137,155.00

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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.