Home / 389,742.40-584,176.20-165,064.60

Finding the Fourth Proportional to 389,742.40, 584,176.20 and 165,064.60

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Solution

The fourth proportional to 389,742.40, 584,176.20 and 165,064.60 is: 247,411.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,742.40 : 584,176.20 = 165,064.60 : x
  2. Step 2: Convert to fraction form
    389,742.40/584,176.20 = 165,064.60/x
  3. Step 3: Cross multiply
    389,742.40x = 584,176.20 × 165,064.60
  4. Step 4: Simplify right side
    389,742.40x = 96,426,810,782.52
  5. Step 5: Solve for x
    x = 96,426,810,782.52/389,742.40
  6. Step 6: Final answer
    x = 247,411.65

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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.