Home / 215,411.10-323,131.05-73,254.30

Finding the Fourth Proportional to 215,411.10, 323,131.05 and 73,254.30

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Solution

The fourth proportional to 215,411.10, 323,131.05 and 73,254.30 is: 109,886.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,411.10 : 323,131.05 = 73,254.30 : x
  2. Step 2: Convert to fraction form
    215,411.10/323,131.05 = 73,254.30/x
  3. Step 3: Cross multiply
    215,411.10x = 323,131.05 × 73,254.30
  4. Step 4: Simplify right side
    215,411.10x = 23,670,738,876.02
  5. Step 5: Solve for x
    x = 23,670,738,876.02/215,411.10
  6. Step 6: Final answer
    x = 109,886.35

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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.