Home / 372,215.90-513,632.66-202,446.38

Finding the Fourth Proportional to 372,215.90, 513,632.66 and 202,446.38

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Solution

The fourth proportional to 372,215.90, 513,632.66 and 202,446.38 is: 279,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,215.90 : 513,632.66 = 202,446.38 : x
  2. Step 2: Convert to fraction form
    372,215.90/513,632.66 = 202,446.38/x
  3. Step 3: Cross multiply
    372,215.90x = 513,632.66 × 202,446.38
  4. Step 4: Simplify right side
    372,215.90x = 103,983,072,666.77
  5. Step 5: Solve for x
    x = 103,983,072,666.77/372,215.90
  6. Step 6: Final answer
    x = 279,362.25

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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.