Home / 303,639.20-455,475.38-126,164.16

Finding the Fourth Proportional to 303,639.20, 455,475.38 and 126,164.16

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Solution

The fourth proportional to 303,639.20, 455,475.38 and 126,164.16 is: 189,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,639.20 : 455,475.38 = 126,164.16 : x
  2. Step 2: Convert to fraction form
    303,639.20/455,475.38 = 126,164.16/x
  3. Step 3: Cross multiply
    303,639.20x = 455,475.38 × 126,164.16
  4. Step 4: Simplify right side
    303,639.20x = 57,464,668,718.38
  5. Step 5: Solve for x
    x = 57,464,668,718.38/303,639.20
  6. Step 6: Final answer
    x = 189,253.13

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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.