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Finding the Fourth Proportional to 358,948.72, 495,352.56 and 197,809.55

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Solution

The fourth proportional to 358,948.72, 495,352.56 and 197,809.55 is: 272,979.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,948.72 : 495,352.56 = 197,809.55 : x
  2. Step 2: Convert to fraction form
    358,948.72/495,352.56 = 197,809.55/x
  3. Step 3: Cross multiply
    358,948.72x = 495,352.56 × 197,809.55
  4. Step 4: Simplify right side
    358,948.72x = 97,985,466,984.95
  5. Step 5: Solve for x
    x = 97,985,466,984.95/358,948.72
  6. Step 6: Final answer
    x = 272,979.01

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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.