Home / 212,787.18-293,666.99-158,978.79

Finding the Fourth Proportional to 212,787.18, 293,666.99 and 158,978.79

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Solution

The fourth proportional to 212,787.18, 293,666.99 and 158,978.79 is: 219,406.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,787.18 : 293,666.99 = 158,978.79 : x
  2. Step 2: Convert to fraction form
    212,787.18/293,666.99 = 158,978.79/x
  3. Step 3: Cross multiply
    212,787.18x = 293,666.99 × 158,978.79
  4. Step 4: Simplify right side
    212,787.18x = 46,686,821,938.25
  5. Step 5: Solve for x
    x = 46,686,821,938.25/212,787.18
  6. Step 6: Final answer
    x = 219,406.18

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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.