Home / 358,949.72-495,353.94-197,810.55

Finding the Fourth Proportional to 358,949.72, 495,353.94 and 197,810.55

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Solution

The fourth proportional to 358,949.72, 495,353.94 and 197,810.55 is: 272,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,949.72 : 495,353.94 = 197,810.55 : x
  2. Step 2: Convert to fraction form
    358,949.72/495,353.94 = 197,810.55/x
  3. Step 3: Cross multiply
    358,949.72x = 495,353.94 × 197,810.55
  4. Step 4: Simplify right side
    358,949.72x = 97,986,235,316.07
  5. Step 5: Solve for x
    x = 97,986,235,316.07/358,949.72
  6. Step 6: Final answer
    x = 272,980.39

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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.