Home / 372,455.45-513,952.95-209,074.55

Finding the Fourth Proportional to 372,455.45, 513,952.95 and 209,074.55

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Solution

The fourth proportional to 372,455.45, 513,952.95 and 209,074.55 is: 288,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,455.45 : 513,952.95 = 209,074.55 : x
  2. Step 2: Convert to fraction form
    372,455.45/513,952.95 = 209,074.55/x
  3. Step 3: Cross multiply
    372,455.45x = 513,952.95 × 209,074.55
  4. Step 4: Simplify right side
    372,455.45x = 107,454,481,742.42
  5. Step 5: Solve for x
    x = 107,454,481,742.42/372,455.45
  6. Step 6: Final answer
    x = 288,502.91

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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.