Home / 211,892.31-292,670.42-158,415.03

Finding the Fourth Proportional to 211,892.31, 292,670.42 and 158,415.03

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Solution

The fourth proportional to 211,892.31, 292,670.42 and 158,415.03 is: 218,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,892.31 : 292,670.42 = 158,415.03 : x
  2. Step 2: Convert to fraction form
    211,892.31/292,670.42 = 158,415.03/x
  3. Step 3: Cross multiply
    211,892.31x = 292,670.42 × 158,415.03
  4. Step 4: Simplify right side
    211,892.31x = 46,363,392,572.34
  5. Step 5: Solve for x
    x = 46,363,392,572.34/211,892.31
  6. Step 6: Final answer
    x = 218,806.40

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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.