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Finding the Fourth Proportional to 423,763.16, 635,488.98 and 170,976.08

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Solution

The fourth proportional to 423,763.16, 635,488.98 and 170,976.08 is: 256,401.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,763.16 : 635,488.98 = 170,976.08 : x
  2. Step 2: Convert to fraction form
    423,763.16/635,488.98 = 170,976.08/x
  3. Step 3: Cross multiply
    423,763.16x = 635,488.98 × 170,976.08
  4. Step 4: Simplify right side
    423,763.16x = 108,653,414,683.60
  5. Step 5: Solve for x
    x = 108,653,414,683.60/423,763.16
  6. Step 6: Final answer
    x = 256,401.28

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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.