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Finding the Fourth Proportional to 360,639.97, 497,683.11 and 197,297.80

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Solution

The fourth proportional to 360,639.97, 497,683.11 and 197,297.80 is: 272,270.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,639.97 : 497,683.11 = 197,297.80 : x
  2. Step 2: Convert to fraction form
    360,639.97/497,683.11 = 197,297.80/x
  3. Step 3: Cross multiply
    360,639.97x = 497,683.11 × 197,297.80
  4. Step 4: Simplify right side
    360,639.97x = 98,191,782,700.16
  5. Step 5: Solve for x
    x = 98,191,782,700.16/360,639.97
  6. Step 6: Final answer
    x = 272,270.94

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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.