Home / 266,427.04-399,631.30-66,749.12

Finding the Fourth Proportional to 266,427.04, 399,631.30 and 66,749.12

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Solution

The fourth proportional to 266,427.04, 399,631.30 and 66,749.12 is: 100,121.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,427.04 : 399,631.30 = 66,749.12 : x
  2. Step 2: Convert to fraction form
    266,427.04/399,631.30 = 66,749.12/x
  3. Step 3: Cross multiply
    266,427.04x = 399,631.30 × 66,749.12
  4. Step 4: Simplify right side
    266,427.04x = 26,675,037,599.46
  5. Step 5: Solve for x
    x = 26,675,037,599.46/266,427.04
  6. Step 6: Final answer
    x = 100,121.36

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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.