Home / 389,739.40-584,171.70-165,061.60

Finding the Fourth Proportional to 389,739.40, 584,171.70 and 165,061.60

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Solution

The fourth proportional to 389,739.40, 584,171.70 and 165,061.60 is: 247,407.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,739.40 : 584,171.70 = 165,061.60 : x
  2. Step 2: Convert to fraction form
    389,739.40/584,171.70 = 165,061.60/x
  3. Step 3: Cross multiply
    389,739.40x = 584,171.70 × 165,061.60
  4. Step 4: Simplify right side
    389,739.40x = 96,424,315,476.72
  5. Step 5: Solve for x
    x = 96,424,315,476.72/389,739.40
  6. Step 6: Final answer
    x = 247,407.15

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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.