Home / 328,785.12-453,310.38-268,294.32

Finding the Fourth Proportional to 328,785.12, 453,310.38 and 268,294.32

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Solution

The fourth proportional to 328,785.12, 453,310.38 and 268,294.32 is: 369,909.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,785.12 : 453,310.38 = 268,294.32 : x
  2. Step 2: Convert to fraction form
    328,785.12/453,310.38 = 268,294.32/x
  3. Step 3: Cross multiply
    328,785.12x = 453,310.38 × 268,294.32
  4. Step 4: Simplify right side
    328,785.12x = 121,620,600,151.04
  5. Step 5: Solve for x
    x = 121,620,600,151.04/328,785.12
  6. Step 6: Final answer
    x = 369,909.08

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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.