Home / 330,384.51-456,150-253,766.61

Finding the Fourth Proportional to 330,384.51, 456,150 and 253,766.61

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Solution

The fourth proportional to 330,384.51, 456,150 and 253,766.61 is: 350,366.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,384.51 : 456,150 = 253,766.61 : x
  2. Step 2: Convert to fraction form
    330,384.51/456,150 = 253,766.61/x
  3. Step 3: Cross multiply
    330,384.51x = 456,150 × 253,766.61
  4. Step 4: Simplify right side
    330,384.51x = 115,755,639,151.50
  5. Step 5: Solve for x
    x = 115,755,639,151.50/330,384.51
  6. Step 6: Final answer
    x = 350,366.42

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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.