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Finding the Fourth Proportional to 279,237.60, 418,856.40 and 167,263.20

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Solution

The fourth proportional to 279,237.60, 418,856.40 and 167,263.20 is: 250,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,237.60 : 418,856.40 = 167,263.20 : x
  2. Step 2: Convert to fraction form
    279,237.60/418,856.40 = 167,263.20/x
  3. Step 3: Cross multiply
    279,237.60x = 418,856.40 × 167,263.20
  4. Step 4: Simplify right side
    279,237.60x = 70,059,261,804.48
  5. Step 5: Solve for x
    x = 70,059,261,804.48/279,237.60
  6. Step 6: Final answer
    x = 250,894.80

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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.