Home / 318,948.57-440,132.67-175,705.47

Finding the Fourth Proportional to 318,948.57, 440,132.67 and 175,705.47

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Solution

The fourth proportional to 318,948.57, 440,132.67 and 175,705.47 is: 242,464.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,948.57 : 440,132.67 = 175,705.47 : x
  2. Step 2: Convert to fraction form
    318,948.57/440,132.67 = 175,705.47/x
  3. Step 3: Cross multiply
    318,948.57x = 440,132.67 × 175,705.47
  4. Step 4: Simplify right side
    318,948.57x = 77,333,717,644.70
  5. Step 5: Solve for x
    x = 77,333,717,644.70/318,948.57
  6. Step 6: Final answer
    x = 242,464.54

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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.