Home / 226,437.90-312,404.60-135,823.20

Finding the Fourth Proportional to 226,437.90, 312,404.60 and 135,823.20

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Solution

The fourth proportional to 226,437.90, 312,404.60 and 135,823.20 is: 187,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,437.90 : 312,404.60 = 135,823.20 : x
  2. Step 2: Convert to fraction form
    226,437.90/312,404.60 = 135,823.20/x
  3. Step 3: Cross multiply
    226,437.90x = 312,404.60 × 135,823.20
  4. Step 4: Simplify right side
    226,437.90x = 42,431,792,466.72
  5. Step 5: Solve for x
    x = 42,431,792,466.72/226,437.90
  6. Step 6: Final answer
    x = 187,388.21

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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.