Home / 369,968.20-554,952.30-319,229.80

Finding the Fourth Proportional to 369,968.20, 554,952.30 and 319,229.80

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Solution

The fourth proportional to 369,968.20, 554,952.30 and 319,229.80 is: 478,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,968.20 : 554,952.30 = 319,229.80 : x
  2. Step 2: Convert to fraction form
    369,968.20/554,952.30 = 319,229.80/x
  3. Step 3: Cross multiply
    369,968.20x = 554,952.30 × 319,229.80
  4. Step 4: Simplify right side
    369,968.20x = 177,157,311,738.54
  5. Step 5: Solve for x
    x = 177,157,311,738.54/369,968.20
  6. Step 6: Final answer
    x = 478,844.70

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1.5x scale

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.