Home / 358,947.72-495,351.18-197,808.55

Finding the Fourth Proportional to 358,947.72, 495,351.18 and 197,808.55

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Solution

The fourth proportional to 358,947.72, 495,351.18 and 197,808.55 is: 272,977.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,947.72 : 495,351.18 = 197,808.55 : x
  2. Step 2: Convert to fraction form
    358,947.72/495,351.18 = 197,808.55/x
  3. Step 3: Cross multiply
    358,947.72x = 495,351.18 × 197,808.55
  4. Step 4: Simplify right side
    358,947.72x = 97,984,697,418.21
  5. Step 5: Solve for x
    x = 97,984,697,418.21/358,947.72
  6. Step 6: Final answer
    x = 272,977.63

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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.