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Finding the Fourth Proportional to 358,742, 495,063.96 and 207,926.48

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Solution

The fourth proportional to 358,742, 495,063.96 and 207,926.48 is: 286,938.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,742 : 495,063.96 = 207,926.48 : x
  2. Step 2: Convert to fraction form
    358,742/495,063.96 = 207,926.48/x
  3. Step 3: Cross multiply
    358,742x = 495,063.96 × 207,926.48
  4. Step 4: Simplify right side
    358,742x = 102,936,906,577.66
  5. Step 5: Solve for x
    x = 102,936,906,577.66/358,742
  6. Step 6: Final answer
    x = 286,938.54

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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.