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Finding the Fourth Proportional to 318,762.25, 439,891.92 and 175,521.94

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Solution

The fourth proportional to 318,762.25, 439,891.92 and 175,521.94 is: 242,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,762.25 : 439,891.92 = 175,521.94 : x
  2. Step 2: Convert to fraction form
    318,762.25/439,891.92 = 175,521.94/x
  3. Step 3: Cross multiply
    318,762.25x = 439,891.92 × 175,521.94
  4. Step 4: Simplify right side
    318,762.25x = 77,210,683,188.72
  5. Step 5: Solve for x
    x = 77,210,683,188.72/318,762.25
  6. Step 6: Final answer
    x = 242,220.29

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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.