Home / 398,723.02-550,251-217,444.84

Finding the Fourth Proportional to 398,723.02, 550,251 and 217,444.84

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Solution

The fourth proportional to 398,723.02, 550,251 and 217,444.84 is: 300,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,723.02 : 550,251 = 217,444.84 : x
  2. Step 2: Convert to fraction form
    398,723.02/550,251 = 217,444.84/x
  3. Step 3: Cross multiply
    398,723.02x = 550,251 × 217,444.84
  4. Step 4: Simplify right side
    398,723.02x = 119,649,240,654.84
  5. Step 5: Solve for x
    x = 119,649,240,654.84/398,723.02
  6. Step 6: Final answer
    x = 300,081.10

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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.