Home / 291,972.20-402,921.95-171,089.42

Finding the Fourth Proportional to 291,972.20, 402,921.95 and 171,089.42

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Solution

The fourth proportional to 291,972.20, 402,921.95 and 171,089.42 is: 236,103.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,972.20 : 402,921.95 = 171,089.42 : x
  2. Step 2: Convert to fraction form
    291,972.20/402,921.95 = 171,089.42/x
  3. Step 3: Cross multiply
    291,972.20x = 402,921.95 × 171,089.42
  4. Step 4: Simplify right side
    291,972.20x = 68,935,679,860.71
  5. Step 5: Solve for x
    x = 68,935,679,860.71/291,972.20
  6. Step 6: Final answer
    x = 236,103.58

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1.5x scale

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.