Home / 371,982.03-513,340.52-278,682.45

Finding the Fourth Proportional to 371,982.03, 513,340.52 and 278,682.45

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Solution

The fourth proportional to 371,982.03, 513,340.52 and 278,682.45 is: 384,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,982.03 : 513,340.52 = 278,682.45 : x
  2. Step 2: Convert to fraction form
    371,982.03/513,340.52 = 278,682.45/x
  3. Step 3: Cross multiply
    371,982.03x = 513,340.52 × 278,682.45
  4. Step 4: Simplify right side
    371,982.03x = 143,058,992,752.15
  5. Step 5: Solve for x
    x = 143,058,992,752.15/371,982.03
  6. Step 6: Final answer
    x = 384,585.76

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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.