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Finding the Fourth Proportional to 376,354.36, 519,376.74 and 213,010.87

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Solution

The fourth proportional to 376,354.36, 519,376.74 and 213,010.87 is: 293,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,354.36 : 519,376.74 = 213,010.87 : x
  2. Step 2: Convert to fraction form
    376,354.36/519,376.74 = 213,010.87/x
  3. Step 3: Cross multiply
    376,354.36x = 519,376.74 × 213,010.87
  4. Step 4: Simplify right side
    376,354.36x = 110,632,888,230.19
  5. Step 5: Solve for x
    x = 110,632,888,230.19/376,354.36
  6. Step 6: Final answer
    x = 293,959.36

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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.