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Finding the Fourth Proportional to 394,356.32, 544,211.73 and 213,068.30

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Solution

The fourth proportional to 394,356.32, 544,211.73 and 213,068.30 is: 294,034.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,356.32 : 544,211.73 = 213,068.30 : x
  2. Step 2: Convert to fraction form
    394,356.32/544,211.73 = 213,068.30/x
  3. Step 3: Cross multiply
    394,356.32x = 544,211.73 × 213,068.30
  4. Step 4: Simplify right side
    394,356.32x = 115,954,267,085.82
  5. Step 5: Solve for x
    x = 115,954,267,085.82/394,356.32
  6. Step 6: Final answer
    x = 294,034.26

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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.