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Finding the Fourth Proportional to 358,948.76, 495,352.61 and 197,809.58

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Solution

The fourth proportional to 358,948.76, 495,352.61 and 197,809.58 is: 272,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,948.76 : 495,352.61 = 197,809.58 : x
  2. Step 2: Convert to fraction form
    358,948.76/495,352.61 = 197,809.58/x
  3. Step 3: Cross multiply
    358,948.76x = 495,352.61 × 197,809.58
  4. Step 4: Simplify right side
    358,948.76x = 97,985,488,270.19
  5. Step 5: Solve for x
    x = 97,985,488,270.19/358,948.76
  6. Step 6: Final answer
    x = 272,979.04

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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.