Home / 203,931.10-305,896.65-156,637.23

Finding the Fourth Proportional to 203,931.10, 305,896.65 and 156,637.23

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Solution

The fourth proportional to 203,931.10, 305,896.65 and 156,637.23 is: 234,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,931.10 : 305,896.65 = 156,637.23 : x
  2. Step 2: Convert to fraction form
    203,931.10/305,896.65 = 156,637.23/x
  3. Step 3: Cross multiply
    203,931.10x = 305,896.65 × 156,637.23
  4. Step 4: Simplify right side
    203,931.10x = 47,914,803,922.28
  5. Step 5: Solve for x
    x = 47,914,803,922.28/203,931.10
  6. Step 6: Final answer
    x = 234,955.85

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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.