Home / 302,285.20-417,157.08-173,221.12

Finding the Fourth Proportional to 302,285.20, 417,157.08 and 173,221.12

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Solution

The fourth proportional to 302,285.20, 417,157.08 and 173,221.12 is: 239,047.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,285.20 : 417,157.08 = 173,221.12 : x
  2. Step 2: Convert to fraction form
    302,285.20/417,157.08 = 173,221.12/x
  3. Step 3: Cross multiply
    302,285.20x = 417,157.08 × 173,221.12
  4. Step 4: Simplify right side
    302,285.20x = 72,260,416,613.53
  5. Step 5: Solve for x
    x = 72,260,416,613.53/302,285.20
  6. Step 6: Final answer
    x = 239,047.15

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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.