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Finding the Fourth Proportional to 266,445.99, 367,695.55 and 143,938.42

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Solution

The fourth proportional to 266,445.99, 367,695.55 and 143,938.42 is: 198,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,445.99 : 367,695.55 = 143,938.42 : x
  2. Step 2: Convert to fraction form
    266,445.99/367,695.55 = 143,938.42/x
  3. Step 3: Cross multiply
    266,445.99x = 367,695.55 × 143,938.42
  4. Step 4: Simplify right side
    266,445.99x = 52,925,515,768.72
  5. Step 5: Solve for x
    x = 52,925,515,768.72/266,445.99
  6. Step 6: Final answer
    x = 198,635.06

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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.