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Finding the Fourth Proportional to 315,488.24, 435,367.84 and 179,519.12

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Solution

The fourth proportional to 315,488.24, 435,367.84 and 179,519.12 is: 247,733.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,488.24 : 435,367.84 = 179,519.12 : x
  2. Step 2: Convert to fraction form
    315,488.24/435,367.84 = 179,519.12/x
  3. Step 3: Cross multiply
    315,488.24x = 435,367.84 × 179,519.12
  4. Step 4: Simplify right side
    315,488.24x = 78,156,851,513.10
  5. Step 5: Solve for x
    x = 78,156,851,513.10/315,488.24
  6. Step 6: Final answer
    x = 247,733.01

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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.