Home / 389,840.58-584,810.04-137,061.66

Finding the Fourth Proportional to 389,840.58, 584,810.04 and 137,061.66

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Solution

The fourth proportional to 389,840.58, 584,810.04 and 137,061.66 is: 205,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,840.58 : 584,810.04 = 137,061.66 : x
  2. Step 2: Convert to fraction form
    389,840.58/584,810.04 = 137,061.66/x
  3. Step 3: Cross multiply
    389,840.58x = 584,810.04 × 137,061.66
  4. Step 4: Simplify right side
    389,840.58x = 80,155,034,867.07
  5. Step 5: Solve for x
    x = 80,155,034,867.07/389,840.58
  6. Step 6: Final answer
    x = 205,609.78

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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.