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Finding the Fourth Proportional to 163,902.20, 245,853.30 and 161,569.40

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Solution

The fourth proportional to 163,902.20, 245,853.30 and 161,569.40 is: 242,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,902.20 : 245,853.30 = 161,569.40 : x
  2. Step 2: Convert to fraction form
    163,902.20/245,853.30 = 161,569.40/x
  3. Step 3: Cross multiply
    163,902.20x = 245,853.30 × 161,569.40
  4. Step 4: Simplify right side
    163,902.20x = 39,722,370,169.02
  5. Step 5: Solve for x
    x = 39,722,370,169.02/163,902.20
  6. Step 6: Final answer
    x = 242,354.10

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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.