Home / 447,760.40-671,640.60-148,287.20

Finding the Fourth Proportional to 447,760.40, 671,640.60 and 148,287.20

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Solution

The fourth proportional to 447,760.40, 671,640.60 and 148,287.20 is: 222,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,760.40 : 671,640.60 = 148,287.20 : x
  2. Step 2: Convert to fraction form
    447,760.40/671,640.60 = 148,287.20/x
  3. Step 3: Cross multiply
    447,760.40x = 671,640.60 × 148,287.20
  4. Step 4: Simplify right side
    447,760.40x = 99,595,703,980.32
  5. Step 5: Solve for x
    x = 99,595,703,980.32/447,760.40
  6. Step 6: Final answer
    x = 222,430.80

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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.