Home / 203,219.13-280,439.37-112,574.82

Finding the Fourth Proportional to 203,219.13, 280,439.37 and 112,574.82

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Solution

The fourth proportional to 203,219.13, 280,439.37 and 112,574.82 is: 155,351.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,219.13 : 280,439.37 = 112,574.82 : x
  2. Step 2: Convert to fraction form
    203,219.13/280,439.37 = 112,574.82/x
  3. Step 3: Cross multiply
    203,219.13x = 280,439.37 × 112,574.82
  4. Step 4: Simplify right side
    203,219.13x = 31,570,411,598.66
  5. Step 5: Solve for x
    x = 31,570,411,598.66/203,219.13
  6. Step 6: Final answer
    x = 155,351.57

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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.