Home / 370,057.20-510,680.76-208,918.80

Finding the Fourth Proportional to 370,057.20, 510,680.76 and 208,918.80

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Solution

The fourth proportional to 370,057.20, 510,680.76 and 208,918.80 is: 288,308.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,057.20 : 510,680.76 = 208,918.80 : x
  2. Step 2: Convert to fraction form
    370,057.20/510,680.76 = 208,918.80/x
  3. Step 3: Cross multiply
    370,057.20x = 510,680.76 × 208,918.80
  4. Step 4: Simplify right side
    370,057.20x = 106,690,811,562.29
  5. Step 5: Solve for x
    x = 106,690,811,562.29/370,057.20
  6. Step 6: Final answer
    x = 288,308.97

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1.5x scale

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.