Home / 266,315.10-399,132.45-108,365.10

Finding the Fourth Proportional to 266,315.10, 399,132.45 and 108,365.10

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Solution

The fourth proportional to 266,315.10, 399,132.45 and 108,365.10 is: 162,409.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,315.10 : 399,132.45 = 108,365.10 : x
  2. Step 2: Convert to fraction form
    266,315.10/399,132.45 = 108,365.10/x
  3. Step 3: Cross multiply
    266,315.10x = 399,132.45 × 108,365.10
  4. Step 4: Simplify right side
    266,315.10x = 43,252,027,857.50
  5. Step 5: Solve for x
    x = 43,252,027,857.50/266,315.10
  6. Step 6: Final answer
    x = 162,409.22

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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.