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Finding the Fourth Proportional to 315,672.30, 435,519.72 and 179,672.22

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Solution

The fourth proportional to 315,672.30, 435,519.72 and 179,672.22 is: 247,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,672.30 : 435,519.72 = 179,672.22 : x
  2. Step 2: Convert to fraction form
    315,672.30/435,519.72 = 179,672.22/x
  3. Step 3: Cross multiply
    315,672.30x = 435,519.72 × 179,672.22
  4. Step 4: Simplify right side
    315,672.30x = 78,250,794,946.18
  5. Step 5: Solve for x
    x = 78,250,794,946.18/315,672.30
  6. Step 6: Final answer
    x = 247,886.16

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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.