Home / 203,190.08-280,392.48-112,549.28

Finding the Fourth Proportional to 203,190.08, 280,392.48 and 112,549.28

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Solution

The fourth proportional to 203,190.08, 280,392.48 and 112,549.28 is: 155,312.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,190.08 : 280,392.48 = 112,549.28 : x
  2. Step 2: Convert to fraction form
    203,190.08/280,392.48 = 112,549.28/x
  3. Step 3: Cross multiply
    203,190.08x = 280,392.48 × 112,549.28
  4. Step 4: Simplify right side
    203,190.08x = 31,557,971,741.41
  5. Step 5: Solve for x
    x = 31,557,971,741.41/203,190.08
  6. Step 6: Final answer
    x = 155,312.56

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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.