Home / 291,311.73-402,017.63-163,991.79

Finding the Fourth Proportional to 291,311.73, 402,017.63 and 163,991.79

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Solution

The fourth proportional to 291,311.73, 402,017.63 and 163,991.79 is: 226,312.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,311.73 : 402,017.63 = 163,991.79 : x
  2. Step 2: Convert to fraction form
    291,311.73/402,017.63 = 163,991.79/x
  3. Step 3: Cross multiply
    291,311.73x = 402,017.63 × 163,991.79
  4. Step 4: Simplify right side
    291,311.73x = 65,927,589,935.30
  5. Step 5: Solve for x
    x = 65,927,589,935.30/291,311.73
  6. Step 6: Final answer
    x = 226,312.86

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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.