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Finding the Fourth Proportional to 279,291.60, 418,937.40 and 167,317.20

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Solution

The fourth proportional to 279,291.60, 418,937.40 and 167,317.20 is: 250,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,291.60 : 418,937.40 = 167,317.20 : x
  2. Step 2: Convert to fraction form
    279,291.60/418,937.40 = 167,317.20/x
  3. Step 3: Cross multiply
    279,291.60x = 418,937.40 × 167,317.20
  4. Step 4: Simplify right side
    279,291.60x = 70,095,432,743.28
  5. Step 5: Solve for x
    x = 70,095,432,743.28/279,291.60
  6. Step 6: Final answer
    x = 250,975.80

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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.