Home / 370,711.12-511,603.40-209,581.16

Finding the Fourth Proportional to 370,711.12, 511,603.40 and 209,581.16

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Solution

The fourth proportional to 370,711.12, 511,603.40 and 209,581.16 is: 289,234.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,711.12 : 511,603.40 = 209,581.16 : x
  2. Step 2: Convert to fraction form
    370,711.12/511,603.40 = 209,581.16/x
  3. Step 3: Cross multiply
    370,711.12x = 511,603.40 × 209,581.16
  4. Step 4: Simplify right side
    370,711.12x = 107,222,434,031.94
  5. Step 5: Solve for x
    x = 107,222,434,031.94/370,711.12
  6. Step 6: Final answer
    x = 289,234.47

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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.