Home / 321,851.04-482,667.16-111,439.76

Finding the Fourth Proportional to 321,851.04, 482,667.16 and 111,439.76

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Solution

The fourth proportional to 321,851.04, 482,667.16 and 111,439.76 is: 167,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,851.04 : 482,667.16 = 111,439.76 : x
  2. Step 2: Convert to fraction form
    321,851.04/482,667.16 = 111,439.76/x
  3. Step 3: Cross multiply
    321,851.04x = 482,667.16 × 111,439.76
  4. Step 4: Simplify right side
    321,851.04x = 53,788,312,470.28
  5. Step 5: Solve for x
    x = 53,788,312,470.28/321,851.04
  6. Step 6: Final answer
    x = 167,121.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.