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Finding the Fourth Proportional to 266,430.20, 399,645.30 and 244,657.40

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Solution

The fourth proportional to 266,430.20, 399,645.30 and 244,657.40 is: 366,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,430.20 : 399,645.30 = 244,657.40 : x
  2. Step 2: Convert to fraction form
    266,430.20/399,645.30 = 244,657.40/x
  3. Step 3: Cross multiply
    266,430.20x = 399,645.30 × 244,657.40
  4. Step 4: Simplify right side
    266,430.20x = 97,776,180,020.22
  5. Step 5: Solve for x
    x = 97,776,180,020.22/266,430.20
  6. Step 6: Final answer
    x = 366,986.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.