Home / 306,078.20-459,117.30-272,835.80

Finding the Fourth Proportional to 306,078.20, 459,117.30 and 272,835.80

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Solution

The fourth proportional to 306,078.20, 459,117.30 and 272,835.80 is: 409,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,078.20 : 459,117.30 = 272,835.80 : x
  2. Step 2: Convert to fraction form
    306,078.20/459,117.30 = 272,835.80/x
  3. Step 3: Cross multiply
    306,078.20x = 459,117.30 × 272,835.80
  4. Step 4: Simplify right side
    306,078.20x = 125,263,635,839.34
  5. Step 5: Solve for x
    x = 125,263,635,839.34/306,078.20
  6. Step 6: Final answer
    x = 409,253.70

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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.