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Finding the Fourth Proportional to 358,995.68, 495,498.45 and 223,132.23

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Solution

The fourth proportional to 358,995.68, 495,498.45 and 223,132.23 is: 307,974.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,995.68 : 495,498.45 = 223,132.23 : x
  2. Step 2: Convert to fraction form
    358,995.68/495,498.45 = 223,132.23/x
  3. Step 3: Cross multiply
    358,995.68x = 495,498.45 × 223,132.23
  4. Step 4: Simplify right side
    358,995.68x = 110,561,674,110.04
  5. Step 5: Solve for x
    x = 110,561,674,110.04/358,995.68
  6. Step 6: Final answer
    x = 307,974.95

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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.