Home / 391,569.15-587,408.40-166,927.80

Finding the Fourth Proportional to 391,569.15, 587,408.40 and 166,927.80

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Solution

The fourth proportional to 391,569.15, 587,408.40 and 166,927.80 is: 250,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,569.15 : 587,408.40 = 166,927.80 : x
  2. Step 2: Convert to fraction form
    391,569.15/587,408.40 = 166,927.80/x
  3. Step 3: Cross multiply
    391,569.15x = 587,408.40 × 166,927.80
  4. Step 4: Simplify right side
    391,569.15x = 98,054,791,913.52
  5. Step 5: Solve for x
    x = 98,054,791,913.52/391,569.15
  6. Step 6: Final answer
    x = 250,415.01

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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.