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Finding the Fourth Proportional to 358,825.50, 495,201.87 and 197,680.86

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Solution

The fourth proportional to 358,825.50, 495,201.87 and 197,680.86 is: 272,812.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,825.50 : 495,201.87 = 197,680.86 : x
  2. Step 2: Convert to fraction form
    358,825.50/495,201.87 = 197,680.86/x
  3. Step 3: Cross multiply
    358,825.50x = 495,201.87 × 197,680.86
  4. Step 4: Simplify right side
    358,825.50x = 97,891,931,535.21
  5. Step 5: Solve for x
    x = 97,891,931,535.21/358,825.50
  6. Step 6: Final answer
    x = 272,812.08

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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.