Home / 318,828.72-439,983.84-175,588.56

Finding the Fourth Proportional to 318,828.72, 439,983.84 and 175,588.56

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Solution

The fourth proportional to 318,828.72, 439,983.84 and 175,588.56 is: 242,312.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,828.72 : 439,983.84 = 175,588.56 : x
  2. Step 2: Convert to fraction form
    318,828.72/439,983.84 = 175,588.56/x
  3. Step 3: Cross multiply
    318,828.72x = 439,983.84 × 175,588.56
  4. Step 4: Simplify right side
    318,828.72x = 77,256,128,888.87
  5. Step 5: Solve for x
    x = 77,256,128,888.87/318,828.72
  6. Step 6: Final answer
    x = 242,312.33

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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.