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Finding the Fourth Proportional to 279,366.47, 385,525.73 and 152,042.97

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Solution

The fourth proportional to 279,366.47, 385,525.73 and 152,042.97 is: 209,819.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,366.47 : 385,525.73 = 152,042.97 : x
  2. Step 2: Convert to fraction form
    279,366.47/385,525.73 = 152,042.97/x
  3. Step 3: Cross multiply
    279,366.47x = 385,525.73 × 152,042.97
  4. Step 4: Simplify right side
    279,366.47x = 58,616,477,971.21
  5. Step 5: Solve for x
    x = 58,616,477,971.21/279,366.47
  6. Step 6: Final answer
    x = 209,819.30

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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.