Home / 266,953.40-400,312.02-79,930.04

Finding the Fourth Proportional to 266,953.40, 400,312.02 and 79,930.04

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Solution

The fourth proportional to 266,953.40, 400,312.02 and 79,930.04 is: 119,859.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,953.40 : 400,312.02 = 79,930.04 : x
  2. Step 2: Convert to fraction form
    266,953.40/400,312.02 = 79,930.04/x
  3. Step 3: Cross multiply
    266,953.40x = 400,312.02 × 79,930.04
  4. Step 4: Simplify right side
    266,953.40x = 31,996,955,771.08
  5. Step 5: Solve for x
    x = 31,996,955,771.08/266,953.40
  6. Step 6: Final answer
    x = 119,859.70

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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.