Home / 330,680.40-456,318.54-185,478.18

Finding the Fourth Proportional to 330,680.40, 456,318.54 and 185,478.18

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Solution

The fourth proportional to 330,680.40, 456,318.54 and 185,478.18 is: 255,948.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,680.40 : 456,318.54 = 185,478.18 : x
  2. Step 2: Convert to fraction form
    330,680.40/456,318.54 = 185,478.18/x
  3. Step 3: Cross multiply
    330,680.40x = 456,318.54 × 185,478.18
  4. Step 4: Simplify right side
    330,680.40x = 84,637,132,299.46
  5. Step 5: Solve for x
    x = 84,637,132,299.46/330,680.40
  6. Step 6: Final answer
    x = 255,948.44

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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.