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Finding the Fourth Proportional to 322,870.20, 484,305.30 and 98,230.20

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Solution

The fourth proportional to 322,870.20, 484,305.30 and 98,230.20 is: 147,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,870.20 : 484,305.30 = 98,230.20 : x
  2. Step 2: Convert to fraction form
    322,870.20/484,305.30 = 98,230.20/x
  3. Step 3: Cross multiply
    322,870.20x = 484,305.30 × 98,230.20
  4. Step 4: Simplify right side
    322,870.20x = 47,573,406,480.06
  5. Step 5: Solve for x
    x = 47,573,406,480.06/322,870.20
  6. Step 6: Final answer
    x = 147,345.30

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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.