Home / 370,681.66-511,535.12-209,531.02

Finding the Fourth Proportional to 370,681.66, 511,535.12 and 209,531.02

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Solution

The fourth proportional to 370,681.66, 511,535.12 and 209,531.02 is: 289,149.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,681.66 : 511,535.12 = 209,531.02 : x
  2. Step 2: Convert to fraction form
    370,681.66/511,535.12 = 209,531.02/x
  3. Step 3: Cross multiply
    370,681.66x = 511,535.12 × 209,531.02
  4. Step 4: Simplify right side
    370,681.66x = 107,182,475,459.42
  5. Step 5: Solve for x
    x = 107,182,475,459.42/370,681.66
  6. Step 6: Final answer
    x = 289,149.66

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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.