Home / 266,774.10-400,124.70-79,785.60

Finding the Fourth Proportional to 266,774.10, 400,124.70 and 79,785.60

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Solution

The fourth proportional to 266,774.10, 400,124.70 and 79,785.60 is: 119,667.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,774.10 : 400,124.70 = 79,785.60 : x
  2. Step 2: Convert to fraction form
    266,774.10/400,124.70 = 79,785.60/x
  3. Step 3: Cross multiply
    266,774.10x = 400,124.70 × 79,785.60
  4. Step 4: Simplify right side
    266,774.10x = 31,924,189,264.32
  5. Step 5: Solve for x
    x = 31,924,189,264.32/266,774.10
  6. Step 6: Final answer
    x = 119,667.50

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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.