Home / 215,869.84-323,223.60-140,803.84

Finding the Fourth Proportional to 215,869.84, 323,223.60 and 140,803.84

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Solution

The fourth proportional to 215,869.84, 323,223.60 and 140,803.84 is: 210,826.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,869.84 : 323,223.60 = 140,803.84 : x
  2. Step 2: Convert to fraction form
    215,869.84/323,223.60 = 140,803.84/x
  3. Step 3: Cross multiply
    215,869.84x = 323,223.60 × 140,803.84
  4. Step 4: Simplify right side
    215,869.84x = 45,511,124,058.62
  5. Step 5: Solve for x
    x = 45,511,124,058.62/215,869.84
  6. Step 6: Final answer
    x = 210,826.69

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1.5x scale

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.