Home / 371,913.08-513,245.88-202,147.64

Finding the Fourth Proportional to 371,913.08, 513,245.88 and 202,147.64

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Solution

The fourth proportional to 371,913.08, 513,245.88 and 202,147.64 is: 278,966.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,913.08 : 513,245.88 = 202,147.64 : x
  2. Step 2: Convert to fraction form
    371,913.08/513,245.88 = 202,147.64/x
  3. Step 3: Cross multiply
    371,913.08x = 513,245.88 × 202,147.64
  4. Step 4: Simplify right side
    371,913.08x = 103,751,443,381.72
  5. Step 5: Solve for x
    x = 103,751,443,381.72/371,913.08
  6. Step 6: Final answer
    x = 278,966.91

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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.