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Finding the Fourth Proportional to 640,470.24, 960,705.36 and 167,151.50

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Solution

The fourth proportional to 640,470.24, 960,705.36 and 167,151.50 is: 250,727.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,470.24 : 960,705.36 = 167,151.50 : x
  2. Step 2: Convert to fraction form
    640,470.24/960,705.36 = 167,151.50/x
  3. Step 3: Cross multiply
    640,470.24x = 960,705.36 × 167,151.50
  4. Step 4: Simplify right side
    640,470.24x = 160,583,340,781.16
  5. Step 5: Solve for x
    x = 160,583,340,781.16/640,470.24
  6. Step 6: Final answer
    x = 250,727.25

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Similar ratio
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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.