Home / 266,743.80-399,986.10-148,289.40

Finding the Fourth Proportional to 266,743.80, 399,986.10 and 148,289.40

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Solution

The fourth proportional to 266,743.80, 399,986.10 and 148,289.40 is: 222,362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,743.80 : 399,986.10 = 148,289.40 : x
  2. Step 2: Convert to fraction form
    266,743.80/399,986.10 = 148,289.40/x
  3. Step 3: Cross multiply
    266,743.80x = 399,986.10 × 148,289.40
  4. Step 4: Simplify right side
    266,743.80x = 59,313,698,777.34
  5. Step 5: Solve for x
    x = 59,313,698,777.34/266,743.80
  6. Step 6: Final answer
    x = 222,362.05

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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.