Home / 324,920.12-487,386.86-100,280.69

Finding the Fourth Proportional to 324,920.12, 487,386.86 and 100,280.69

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Solution

The fourth proportional to 324,920.12, 487,386.86 and 100,280.69 is: 150,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,920.12 : 487,386.86 = 100,280.69 : x
  2. Step 2: Convert to fraction form
    324,920.12/487,386.86 = 100,280.69/x
  3. Step 3: Cross multiply
    324,920.12x = 487,386.86 × 100,280.69
  4. Step 4: Simplify right side
    324,920.12x = 48,875,490,617.73
  5. Step 5: Solve for x
    x = 48,875,490,617.73/324,920.12
  6. Step 6: Final answer
    x = 150,423.10

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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.