Home / 318,665.07-439,740.90-175,397.54

Finding the Fourth Proportional to 318,665.07, 439,740.90 and 175,397.54

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Solution

The fourth proportional to 318,665.07, 439,740.90 and 175,397.54 is: 242,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,665.07 : 439,740.90 = 175,397.54 : x
  2. Step 2: Convert to fraction form
    318,665.07/439,740.90 = 175,397.54/x
  3. Step 3: Cross multiply
    318,665.07x = 439,740.90 × 175,397.54
  4. Step 4: Simplify right side
    318,665.07x = 77,129,469,898.68
  5. Step 5: Solve for x
    x = 77,129,469,898.68/318,665.07
  6. Step 6: Final answer
    x = 242,039.30

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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.