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Finding the Fourth Proportional to 318,890.63, 440,069.06 and 175,650.23

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Solution

The fourth proportional to 318,890.63, 440,069.06 and 175,650.23 is: 242,397.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,890.63 : 440,069.06 = 175,650.23 : x
  2. Step 2: Convert to fraction form
    318,890.63/440,069.06 = 175,650.23/x
  3. Step 3: Cross multiply
    318,890.63x = 440,069.06 × 175,650.23
  4. Step 4: Simplify right side
    318,890.63x = 77,298,229,843.66
  5. Step 5: Solve for x
    x = 77,298,229,843.66/318,890.63
  6. Step 6: Final answer
    x = 242,397.31

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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.