Home / 447,025.20-616,886-243,074.40

Finding the Fourth Proportional to 447,025.20, 616,886 and 243,074.40

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Solution

The fourth proportional to 447,025.20, 616,886 and 243,074.40 is: 335,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,025.20 : 616,886 = 243,074.40 : x
  2. Step 2: Convert to fraction form
    447,025.20/616,886 = 243,074.40/x
  3. Step 3: Cross multiply
    447,025.20x = 616,886 × 243,074.40
  4. Step 4: Simplify right side
    447,025.20x = 149,949,194,318.40
  5. Step 5: Solve for x
    x = 149,949,194,318.40/447,025.20
  6. Step 6: Final answer
    x = 335,437.90

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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.