Home / 318,942.75-440,136.27-175,702.89

Finding the Fourth Proportional to 318,942.75, 440,136.27 and 175,702.89

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Solution

The fourth proportional to 318,942.75, 440,136.27 and 175,702.89 is: 242,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,942.75 : 440,136.27 = 175,702.89 : x
  2. Step 2: Convert to fraction form
    318,942.75/440,136.27 = 175,702.89/x
  3. Step 3: Cross multiply
    318,942.75x = 440,136.27 × 175,702.89
  4. Step 4: Simplify right side
    318,942.75x = 77,333,214,632.82
  5. Step 5: Solve for x
    x = 77,333,214,632.82/318,942.75
  6. Step 6: Final answer
    x = 242,467.39

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1.5x scale

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.