Home / 378,887.16-522,827.06-209,110.35

Finding the Fourth Proportional to 378,887.16, 522,827.06 and 209,110.35

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Solution

The fourth proportional to 378,887.16, 522,827.06 and 209,110.35 is: 288,551.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,887.16 : 522,827.06 = 209,110.35 : x
  2. Step 2: Convert to fraction form
    378,887.16/522,827.06 = 209,110.35/x
  3. Step 3: Cross multiply
    378,887.16x = 522,827.06 × 209,110.35
  4. Step 4: Simplify right side
    378,887.16x = 109,328,548,460.52
  5. Step 5: Solve for x
    x = 109,328,548,460.52/378,887.16
  6. Step 6: Final answer
    x = 288,551.74

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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.