Home / 231,579.24-347,133.06-105,309.12

Finding the Fourth Proportional to 231,579.24, 347,133.06 and 105,309.12

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Solution

The fourth proportional to 231,579.24, 347,133.06 and 105,309.12 is: 157,856.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,579.24 : 347,133.06 = 105,309.12 : x
  2. Step 2: Convert to fraction form
    231,579.24/347,133.06 = 105,309.12/x
  3. Step 3: Cross multiply
    231,579.24x = 347,133.06 × 105,309.12
  4. Step 4: Simplify right side
    231,579.24x = 36,556,277,071.51
  5. Step 5: Solve for x
    x = 36,556,277,071.51/231,579.24
  6. Step 6: Final answer
    x = 157,856.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.