Home / 212,292.48-318,477.60-87,565.44

Finding the Fourth Proportional to 212,292.48, 318,477.60 and 87,565.44

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Solution

The fourth proportional to 212,292.48, 318,477.60 and 87,565.44 is: 131,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,292.48 : 318,477.60 = 87,565.44 : x
  2. Step 2: Convert to fraction form
    212,292.48/318,477.60 = 87,565.44/x
  3. Step 3: Cross multiply
    212,292.48x = 318,477.60 × 87,565.44
  4. Step 4: Simplify right side
    212,292.48x = 27,887,631,174.14
  5. Step 5: Solve for x
    x = 27,887,631,174.14/212,292.48
  6. Step 6: Final answer
    x = 131,364.20

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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.