Home / 398,132.82-549,426.85-216,845.57

Finding the Fourth Proportional to 398,132.82, 549,426.85 and 216,845.57

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Solution

The fourth proportional to 398,132.82, 549,426.85 and 216,845.57 is: 299,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,132.82 : 549,426.85 = 216,845.57 : x
  2. Step 2: Convert to fraction form
    398,132.82/549,426.85 = 216,845.57/x
  3. Step 3: Cross multiply
    398,132.82x = 549,426.85 × 216,845.57
  4. Step 4: Simplify right side
    398,132.82x = 119,140,779,293.01
  5. Step 5: Solve for x
    x = 119,140,779,293.01/398,132.82
  6. Step 6: Final answer
    x = 299,248.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.