Home / 209,671.20-289,444.32-134,262.72

Finding the Fourth Proportional to 209,671.20, 289,444.32 and 134,262.72

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Solution

The fourth proportional to 209,671.20, 289,444.32 and 134,262.72 is: 185,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,671.20 : 289,444.32 = 134,262.72 : x
  2. Step 2: Convert to fraction form
    209,671.20/289,444.32 = 134,262.72/x
  3. Step 3: Cross multiply
    209,671.20x = 289,444.32 × 134,262.72
  4. Step 4: Simplify right side
    209,671.20x = 38,861,581,691.75
  5. Step 5: Solve for x
    x = 38,861,581,691.75/209,671.20
  6. Step 6: Final answer
    x = 185,345.35

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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.