Home / 250,607.72-345,854.40-137,430.50

Finding the Fourth Proportional to 250,607.72, 345,854.40 and 137,430.50

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Solution

The fourth proportional to 250,607.72, 345,854.40 and 137,430.50 is: 189,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,607.72 : 345,854.40 = 137,430.50 : x
  2. Step 2: Convert to fraction form
    250,607.72/345,854.40 = 137,430.50/x
  3. Step 3: Cross multiply
    250,607.72x = 345,854.40 × 137,430.50
  4. Step 4: Simplify right side
    250,607.72x = 47,530,943,119.20
  5. Step 5: Solve for x
    x = 47,530,943,119.20/250,607.72
  6. Step 6: Final answer
    x = 189,662.73

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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.