Home / 346,540.20-519,810.30-311,110.80

Finding the Fourth Proportional to 346,540.20, 519,810.30 and 311,110.80

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Solution

The fourth proportional to 346,540.20, 519,810.30 and 311,110.80 is: 466,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,540.20 : 519,810.30 = 311,110.80 : x
  2. Step 2: Convert to fraction form
    346,540.20/519,810.30 = 311,110.80/x
  3. Step 3: Cross multiply
    346,540.20x = 519,810.30 × 311,110.80
  4. Step 4: Simplify right side
    346,540.20x = 161,718,598,281.24
  5. Step 5: Solve for x
    x = 161,718,598,281.24/346,540.20
  6. Step 6: Final answer
    x = 466,666.20

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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.