Home / 215,827.40-323,741.10-120,960.20

Finding the Fourth Proportional to 215,827.40, 323,741.10 and 120,960.20

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Solution

The fourth proportional to 215,827.40, 323,741.10 and 120,960.20 is: 181,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,827.40 : 323,741.10 = 120,960.20 : x
  2. Step 2: Convert to fraction form
    215,827.40/323,741.10 = 120,960.20/x
  3. Step 3: Cross multiply
    215,827.40x = 323,741.10 × 120,960.20
  4. Step 4: Simplify right side
    215,827.40x = 39,159,788,204.22
  5. Step 5: Solve for x
    x = 39,159,788,204.22/215,827.40
  6. Step 6: Final answer
    x = 181,440.30

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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.