Home / 334,911.20-462,156.40-308,161.76

Finding the Fourth Proportional to 334,911.20, 462,156.40 and 308,161.76

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Solution

The fourth proportional to 334,911.20, 462,156.40 and 308,161.76 is: 425,243.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,911.20 : 462,156.40 = 308,161.76 : x
  2. Step 2: Convert to fraction form
    334,911.20/462,156.40 = 308,161.76/x
  3. Step 3: Cross multiply
    334,911.20x = 462,156.40 × 308,161.76
  4. Step 4: Simplify right side
    334,911.20x = 142,418,929,619.26
  5. Step 5: Solve for x
    x = 142,418,929,619.26/334,911.20
  6. Step 6: Final answer
    x = 425,243.85

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1.5x scale

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.