Home / 318,825.12-439,981.68-175,588.32

Finding the Fourth Proportional to 318,825.12, 439,981.68 and 175,588.32

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Solution

The fourth proportional to 318,825.12, 439,981.68 and 175,588.32 is: 242,313.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,825.12 : 439,981.68 = 175,588.32 : x
  2. Step 2: Convert to fraction form
    318,825.12/439,981.68 = 175,588.32/x
  3. Step 3: Cross multiply
    318,825.12x = 439,981.68 × 175,588.32
  4. Step 4: Simplify right side
    318,825.12x = 77,255,644,021.98
  5. Step 5: Solve for x
    x = 77,255,644,021.98/318,825.12
  6. Step 6: Final answer
    x = 242,313.54

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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.