Home / 279,020.13-385,045.89-151,695.73

Finding the Fourth Proportional to 279,020.13, 385,045.89 and 151,695.73

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Solution

The fourth proportional to 279,020.13, 385,045.89 and 151,695.73 is: 209,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,020.13 : 385,045.89 = 151,695.73 : x
  2. Step 2: Convert to fraction form
    279,020.13/385,045.89 = 151,695.73/x
  3. Step 3: Cross multiply
    279,020.13x = 385,045.89 × 151,695.73
  4. Step 4: Simplify right side
    279,020.13x = 58,409,816,836.52
  5. Step 5: Solve for x
    x = 58,409,816,836.52/279,020.13
  6. Step 6: Final answer
    x = 209,339.07

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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.