Home / 291,489.20-402,283.78-170,623.16

Finding the Fourth Proportional to 291,489.20, 402,283.78 and 170,623.16

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Solution

The fourth proportional to 291,489.20, 402,283.78 and 170,623.16 is: 235,476.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,489.20 : 402,283.78 = 170,623.16 : x
  2. Step 2: Convert to fraction form
    291,489.20/402,283.78 = 170,623.16/x
  3. Step 3: Cross multiply
    291,489.20x = 402,283.78 × 170,623.16
  4. Step 4: Simplify right side
    291,489.20x = 68,638,929,760.34
  5. Step 5: Solve for x
    x = 68,638,929,760.34/291,489.20
  6. Step 6: Final answer
    x = 235,476.75

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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.