Home / 389,729.40-584,156.70-165,051.60

Finding the Fourth Proportional to 389,729.40, 584,156.70 and 165,051.60

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Solution

The fourth proportional to 389,729.40, 584,156.70 and 165,051.60 is: 247,392.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,729.40 : 584,156.70 = 165,051.60 : x
  2. Step 2: Convert to fraction form
    389,729.40/584,156.70 = 165,051.60/x
  3. Step 3: Cross multiply
    389,729.40x = 584,156.70 × 165,051.60
  4. Step 4: Simplify right side
    389,729.40x = 96,415,997,985.72
  5. Step 5: Solve for x
    x = 96,415,997,985.72/389,729.40
  6. Step 6: Final answer
    x = 247,392.16

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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.