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Finding the Fourth Proportional to 360,808.04, 498,015.18 and 209,934.20

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Solution

The fourth proportional to 360,808.04, 498,015.18 and 209,934.20 is: 289,767.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,808.04 : 498,015.18 = 209,934.20 : x
  2. Step 2: Convert to fraction form
    360,808.04/498,015.18 = 209,934.20/x
  3. Step 3: Cross multiply
    360,808.04x = 498,015.18 × 209,934.20
  4. Step 4: Simplify right side
    360,808.04x = 104,550,418,401.16
  5. Step 5: Solve for x
    x = 104,550,418,401.16/360,808.04
  6. Step 6: Final answer
    x = 289,767.43

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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.