Home / 330,947.10-456,803.19-216,242.55

Finding the Fourth Proportional to 330,947.10, 456,803.19 and 216,242.55

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Solution

The fourth proportional to 330,947.10, 456,803.19 and 216,242.55 is: 298,477.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,947.10 : 456,803.19 = 216,242.55 : x
  2. Step 2: Convert to fraction form
    330,947.10/456,803.19 = 216,242.55/x
  3. Step 3: Cross multiply
    330,947.10x = 456,803.19 × 216,242.55
  4. Step 4: Simplify right side
    330,947.10x = 98,780,286,653.73
  5. Step 5: Solve for x
    x = 98,780,286,653.73/330,947.10
  6. Step 6: Final answer
    x = 298,477.57

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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.