Home / 266,511.06-399,419.55-238,266.90

Finding the Fourth Proportional to 266,511.06, 399,419.55 and 238,266.90

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Solution

The fourth proportional to 266,511.06, 399,419.55 and 238,266.90 is: 357,090.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,511.06 : 399,419.55 = 238,266.90 : x
  2. Step 2: Convert to fraction form
    266,511.06/399,419.55 = 238,266.90/x
  3. Step 3: Cross multiply
    266,511.06x = 399,419.55 × 238,266.90
  4. Step 4: Simplify right side
    266,511.06x = 95,168,457,977.90
  5. Step 5: Solve for x
    x = 95,168,457,977.90/266,511.06
  6. Step 6: Final answer
    x = 357,090.09

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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.