Home / 372,145.36-513,555.78-202,375.84

Finding the Fourth Proportional to 372,145.36, 513,555.78 and 202,375.84

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Solution

The fourth proportional to 372,145.36, 513,555.78 and 202,375.84 is: 279,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,145.36 : 513,555.78 = 202,375.84 : x
  2. Step 2: Convert to fraction form
    372,145.36/513,555.78 = 202,375.84/x
  3. Step 3: Cross multiply
    372,145.36x = 513,555.78 × 202,375.84
  4. Step 4: Simplify right side
    372,145.36x = 103,931,282,364.36
  5. Step 5: Solve for x
    x = 103,931,282,364.36/372,145.36
  6. Step 6: Final answer
    x = 279,276.04

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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.