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Finding the Fourth Proportional to 358,761, 495,090.20 and 207,945.48

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Solution

The fourth proportional to 358,761, 495,090.20 and 207,945.48 is: 286,964.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,761 : 495,090.20 = 207,945.48 : x
  2. Step 2: Convert to fraction form
    358,761/495,090.20 = 207,945.48/x
  3. Step 3: Cross multiply
    358,761x = 495,090.20 × 207,945.48
  4. Step 4: Simplify right side
    358,761x = 102,951,769,282.30
  5. Step 5: Solve for x
    x = 102,951,769,282.30/358,761
  6. Step 6: Final answer
    x = 286,964.77

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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.