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Finding the Fourth Proportional to 167,287.20, 251,125.20 and 100,802.40

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Solution

The fourth proportional to 167,287.20, 251,125.20 and 100,802.40 is: 151,320.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,287.20 : 251,125.20 = 100,802.40 : x
  2. Step 2: Convert to fraction form
    167,287.20/251,125.20 = 100,802.40/x
  3. Step 3: Cross multiply
    167,287.20x = 251,125.20 × 100,802.40
  4. Step 4: Simplify right side
    167,287.20x = 25,314,022,860.48
  5. Step 5: Solve for x
    x = 25,314,022,860.48/167,287.20
  6. Step 6: Final answer
    x = 151,320.74

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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.