Home / 279,276.90-385,430.67-164,591.22

Finding the Fourth Proportional to 279,276.90, 385,430.67 and 164,591.22

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Solution

The fourth proportional to 279,276.90, 385,430.67 and 164,591.22 is: 227,152.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,276.90 : 385,430.67 = 164,591.22 : x
  2. Step 2: Convert to fraction form
    279,276.90/385,430.67 = 164,591.22/x
  3. Step 3: Cross multiply
    279,276.90x = 385,430.67 × 164,591.22
  4. Step 4: Simplify right side
    279,276.90x = 63,438,504,200.72
  5. Step 5: Solve for x
    x = 63,438,504,200.72/279,276.90
  6. Step 6: Final answer
    x = 227,152.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.