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Finding the Fourth Proportional to 318,790.16, 439,819.13 and 180,952.67

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Solution

The fourth proportional to 318,790.16, 439,819.13 and 180,952.67 is: 249,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,790.16 : 439,819.13 = 180,952.67 : x
  2. Step 2: Convert to fraction form
    318,790.16/439,819.13 = 180,952.67/x
  3. Step 3: Cross multiply
    318,790.16x = 439,819.13 × 180,952.67
  4. Step 4: Simplify right side
    318,790.16x = 79,586,442,786.72
  5. Step 5: Solve for x
    x = 79,586,442,786.72/318,790.16
  6. Step 6: Final answer
    x = 249,651.51

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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.