Home / 388,400.16-582,631.68-107,917.44

Finding the Fourth Proportional to 388,400.16, 582,631.68 and 107,917.44

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Solution

The fourth proportional to 388,400.16, 582,631.68 and 107,917.44 is: 161,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,400.16 : 582,631.68 = 107,917.44 : x
  2. Step 2: Convert to fraction form
    388,400.16/582,631.68 = 107,917.44/x
  3. Step 3: Cross multiply
    388,400.16x = 582,631.68 × 107,917.44
  4. Step 4: Simplify right side
    388,400.16x = 62,876,119,368.50
  5. Step 5: Solve for x
    x = 62,876,119,368.50/388,400.16
  6. Step 6: Final answer
    x = 161,884.90

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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.