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Finding the Fourth Proportional to 145,300.97, 200,604.80 and 115,207.85

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Solution

The fourth proportional to 145,300.97, 200,604.80 and 115,207.85 is: 159,057.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,300.97 : 200,604.80 = 115,207.85 : x
  2. Step 2: Convert to fraction form
    145,300.97/200,604.80 = 115,207.85/x
  3. Step 3: Cross multiply
    145,300.97x = 200,604.80 × 115,207.85
  4. Step 4: Simplify right side
    145,300.97x = 23,111,247,707.68
  5. Step 5: Solve for x
    x = 23,111,247,707.68/145,300.97
  6. Step 6: Final answer
    x = 159,057.77

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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.