Home / 185,940.30-278,582.40-152,479.20

Finding the Fourth Proportional to 185,940.30, 278,582.40 and 152,479.20

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Solution

The fourth proportional to 185,940.30, 278,582.40 and 152,479.20 is: 228,449.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,940.30 : 278,582.40 = 152,479.20 : x
  2. Step 2: Convert to fraction form
    185,940.30/278,582.40 = 152,479.20/x
  3. Step 3: Cross multiply
    185,940.30x = 278,582.40 × 152,479.20
  4. Step 4: Simplify right side
    185,940.30x = 42,478,021,486.08
  5. Step 5: Solve for x
    x = 42,478,021,486.08/185,940.30
  6. Step 6: Final answer
    x = 228,449.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.