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Finding the Fourth Proportional to 275,802.30, 413,409.15 and 157,218.30

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Solution

The fourth proportional to 275,802.30, 413,409.15 and 157,218.30 is: 235,659.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,802.30 : 413,409.15 = 157,218.30 : x
  2. Step 2: Convert to fraction form
    275,802.30/413,409.15 = 157,218.30/x
  3. Step 3: Cross multiply
    275,802.30x = 413,409.15 × 157,218.30
  4. Step 4: Simplify right side
    275,802.30x = 64,995,483,767.45
  5. Step 5: Solve for x
    x = 64,995,483,767.45/275,802.30
  6. Step 6: Final answer
    x = 235,659.69

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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.