Home / 317,799.78-438,594.12-181,806.72

Finding the Fourth Proportional to 317,799.78, 438,594.12 and 181,806.72

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Solution

The fourth proportional to 317,799.78, 438,594.12 and 181,806.72 is: 250,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,799.78 : 438,594.12 = 181,806.72 : x
  2. Step 2: Convert to fraction form
    317,799.78/438,594.12 = 181,806.72/x
  3. Step 3: Cross multiply
    317,799.78x = 438,594.12 × 181,806.72
  4. Step 4: Simplify right side
    317,799.78x = 79,739,358,368.49
  5. Step 5: Solve for x
    x = 79,739,358,368.49/317,799.78
  6. Step 6: Final answer
    x = 250,910.68

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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.