Home / 378,664.95-522,557.58-208,899.06

Finding the Fourth Proportional to 378,664.95, 522,557.58 and 208,899.06

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Solution

The fourth proportional to 378,664.95, 522,557.58 and 208,899.06 is: 288,280.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,664.95 : 522,557.58 = 208,899.06 : x
  2. Step 2: Convert to fraction form
    378,664.95/522,557.58 = 208,899.06/x
  3. Step 3: Cross multiply
    378,664.95x = 522,557.58 × 208,899.06
  4. Step 4: Simplify right side
    378,664.95x = 109,161,787,257.88
  5. Step 5: Solve for x
    x = 109,161,787,257.88/378,664.95
  6. Step 6: Final answer
    x = 288,280.67

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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.