Home / 330,440.80-456,081.24-217,274.08

Finding the Fourth Proportional to 330,440.80, 456,081.24 and 217,274.08

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Solution

The fourth proportional to 330,440.80, 456,081.24 and 217,274.08 is: 299,886.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,440.80 : 456,081.24 = 217,274.08 : x
  2. Step 2: Convert to fraction form
    330,440.80/456,081.24 = 217,274.08/x
  3. Step 3: Cross multiply
    330,440.80x = 456,081.24 × 217,274.08
  4. Step 4: Simplify right side
    330,440.80x = 99,094,631,826.26
  5. Step 5: Solve for x
    x = 99,094,631,826.26/330,440.80
  6. Step 6: Final answer
    x = 299,886.19

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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.