Home / 372,486.31-514,085.28-209,161.15

Finding the Fourth Proportional to 372,486.31, 514,085.28 and 209,161.15

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Solution

The fourth proportional to 372,486.31, 514,085.28 and 209,161.15 is: 288,672.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,486.31 : 514,085.28 = 209,161.15 : x
  2. Step 2: Convert to fraction form
    372,486.31/514,085.28 = 209,161.15/x
  3. Step 3: Cross multiply
    372,486.31x = 514,085.28 × 209,161.15
  4. Step 4: Simplify right side
    372,486.31x = 107,526,668,362.87
  5. Step 5: Solve for x
    x = 107,526,668,362.87/372,486.31
  6. Step 6: Final answer
    x = 288,672.81

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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.