Home / 203,312.19-280,571.48-112,669.65

Finding the Fourth Proportional to 203,312.19, 280,571.48 and 112,669.65

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Solution

The fourth proportional to 203,312.19, 280,571.48 and 112,669.65 is: 155,484.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,312.19 : 280,571.48 = 112,669.65 : x
  2. Step 2: Convert to fraction form
    203,312.19/280,571.48 = 112,669.65/x
  3. Step 3: Cross multiply
    203,312.19x = 280,571.48 × 112,669.65
  4. Step 4: Simplify right side
    203,312.19x = 31,611,890,451.58
  5. Step 5: Solve for x
    x = 31,611,890,451.58/203,312.19
  6. Step 6: Final answer
    x = 155,484.48

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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.