Home / 370,339.28-511,109.80-209,204.72

Finding the Fourth Proportional to 370,339.28, 511,109.80 and 209,204.72

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Solution

The fourth proportional to 370,339.28, 511,109.80 and 209,204.72 is: 288,726.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,339.28 : 511,109.80 = 209,204.72 : x
  2. Step 2: Convert to fraction form
    370,339.28/511,109.80 = 209,204.72/x
  3. Step 3: Cross multiply
    370,339.28x = 511,109.80 × 209,204.72
  4. Step 4: Simplify right side
    370,339.28x = 106,926,582,598.26
  5. Step 5: Solve for x
    x = 106,926,582,598.26/370,339.28
  6. Step 6: Final answer
    x = 288,726.01

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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.