Home / 280,287.36-387,016.95-225,666.02

Finding the Fourth Proportional to 280,287.36, 387,016.95 and 225,666.02

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Solution

The fourth proportional to 280,287.36, 387,016.95 and 225,666.02 is: 311,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,287.36 : 387,016.95 = 225,666.02 : x
  2. Step 2: Convert to fraction form
    280,287.36/387,016.95 = 225,666.02/x
  3. Step 3: Cross multiply
    280,287.36x = 387,016.95 × 225,666.02
  4. Step 4: Simplify right side
    280,287.36x = 87,336,573,650.71
  5. Step 5: Solve for x
    x = 87,336,573,650.71/280,287.36
  6. Step 6: Final answer
    x = 311,596.55

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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.