Home / 278,317.60-417,452.10-91,329.10

Finding the Fourth Proportional to 278,317.60, 417,452.10 and 91,329.10

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Solution

The fourth proportional to 278,317.60, 417,452.10 and 91,329.10 is: 136,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,317.60 : 417,452.10 = 91,329.10 : x
  2. Step 2: Convert to fraction form
    278,317.60/417,452.10 = 91,329.10/x
  3. Step 3: Cross multiply
    278,317.60x = 417,452.10 × 91,329.10
  4. Step 4: Simplify right side
    278,317.60x = 38,125,524,586.11
  5. Step 5: Solve for x
    x = 38,125,524,586.11/278,317.60
  6. Step 6: Final answer
    x = 136,985.68

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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.