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Finding the Fourth Proportional to 283,779.55, 425,667.78 and 121,649.72

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Solution

The fourth proportional to 283,779.55, 425,667.78 and 121,649.72 is: 182,473.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,779.55 : 425,667.78 = 121,649.72 : x
  2. Step 2: Convert to fraction form
    283,779.55/425,667.78 = 121,649.72/x
  3. Step 3: Cross multiply
    283,779.55x = 425,667.78 × 121,649.72
  4. Step 4: Simplify right side
    283,779.55x = 51,782,366,250.02
  5. Step 5: Solve for x
    x = 51,782,366,250.02/283,779.55
  6. Step 6: Final answer
    x = 182,473.92

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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.