Home / 389,996.40-583,828.20-232,143.60

Finding the Fourth Proportional to 389,996.40, 583,828.20 and 232,143.60

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Solution

The fourth proportional to 389,996.40, 583,828.20 and 232,143.60 is: 347,521.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,996.40 : 583,828.20 = 232,143.60 : x
  2. Step 2: Convert to fraction form
    389,996.40/583,828.20 = 232,143.60/x
  3. Step 3: Cross multiply
    389,996.40x = 583,828.20 × 232,143.60
  4. Step 4: Simplify right side
    389,996.40x = 135,531,980,129.52
  5. Step 5: Solve for x
    x = 135,531,980,129.52/389,996.40
  6. Step 6: Final answer
    x = 347,521.11

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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.