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Finding the Fourth Proportional to 215,543.36, 297,459 and 120,050

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Solution

The fourth proportional to 215,543.36, 297,459 and 120,050 is: 165,674.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,543.36 : 297,459 = 120,050 : x
  2. Step 2: Convert to fraction form
    215,543.36/297,459 = 120,050/x
  3. Step 3: Cross multiply
    215,543.36x = 297,459 × 120,050
  4. Step 4: Simplify right side
    215,543.36x = 35,709,952,950
  5. Step 5: Solve for x
    x = 35,709,952,950/215,543.36
  6. Step 6: Final answer
    x = 165,674.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.