Home / 370,689.02-511,545.30-209,538.44

Finding the Fourth Proportional to 370,689.02, 511,545.30 and 209,538.44

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Solution

The fourth proportional to 370,689.02, 511,545.30 and 209,538.44 is: 289,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,689.02 : 511,545.30 = 209,538.44 : x
  2. Step 2: Convert to fraction form
    370,689.02/511,545.30 = 209,538.44/x
  3. Step 3: Cross multiply
    370,689.02x = 511,545.30 × 209,538.44
  4. Step 4: Simplify right side
    370,689.02x = 107,188,404,151.33
  5. Step 5: Solve for x
    x = 107,188,404,151.33/370,689.02
  6. Step 6: Final answer
    x = 289,159.91

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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.