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Finding the Fourth Proportional to 358,949.47, 495,353.60 and 197,810.30

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Solution

The fourth proportional to 358,949.47, 495,353.60 and 197,810.30 is: 272,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,949.47 : 495,353.60 = 197,810.30 : x
  2. Step 2: Convert to fraction form
    358,949.47/495,353.60 = 197,810.30/x
  3. Step 3: Cross multiply
    358,949.47x = 495,353.60 × 197,810.30
  4. Step 4: Simplify right side
    358,949.47x = 97,986,043,233.03
  5. Step 5: Solve for x
    x = 97,986,043,233.03/358,949.47
  6. Step 6: Final answer
    x = 272,980.05

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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.