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Finding the Fourth Proportional to 324,843.60, 487,248.12 and 103,210.32

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Solution

The fourth proportional to 324,843.60, 487,248.12 and 103,210.32 is: 154,809.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,843.60 : 487,248.12 = 103,210.32 : x
  2. Step 2: Convert to fraction form
    324,843.60/487,248.12 = 103,210.32/x
  3. Step 3: Cross multiply
    324,843.60x = 487,248.12 × 103,210.32
  4. Step 4: Simplify right side
    324,843.60x = 50,289,034,384.60
  5. Step 5: Solve for x
    x = 50,289,034,384.60/324,843.60
  6. Step 6: Final answer
    x = 154,809.99

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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.