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Finding the Fourth Proportional to 215,492.88, 323,239.44 and 57,717.30

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Solution

The fourth proportional to 215,492.88, 323,239.44 and 57,717.30 is: 86,575.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,492.88 : 323,239.44 = 57,717.30 : x
  2. Step 2: Convert to fraction form
    215,492.88/323,239.44 = 57,717.30/x
  3. Step 3: Cross multiply
    215,492.88x = 323,239.44 × 57,717.30
  4. Step 4: Simplify right side
    215,492.88x = 18,656,507,730.31
  5. Step 5: Solve for x
    x = 18,656,507,730.31/215,492.88
  6. Step 6: Final answer
    x = 86,575.98

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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.