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Finding the Fourth Proportional to 318,758.25, 439,886.40 and 175,517.94

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Solution

The fourth proportional to 318,758.25, 439,886.40 and 175,517.94 is: 242,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,758.25 : 439,886.40 = 175,517.94 : x
  2. Step 2: Convert to fraction form
    318,758.25/439,886.40 = 175,517.94/x
  3. Step 3: Cross multiply
    318,758.25x = 439,886.40 × 175,517.94
  4. Step 4: Simplify right side
    318,758.25x = 77,207,954,762.02
  5. Step 5: Solve for x
    x = 77,207,954,762.02/318,758.25
  6. Step 6: Final answer
    x = 242,214.77

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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.