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Finding the Fourth Proportional to 253,537.58, 349,867.98 and 138,794.03

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Solution

The fourth proportional to 253,537.58, 349,867.98 and 138,794.03 is: 191,528.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,537.58 : 349,867.98 = 138,794.03 : x
  2. Step 2: Convert to fraction form
    253,537.58/349,867.98 = 138,794.03/x
  3. Step 3: Cross multiply
    253,537.58x = 349,867.98 × 138,794.03
  4. Step 4: Simplify right side
    253,537.58x = 48,559,586,912.16
  5. Step 5: Solve for x
    x = 48,559,586,912.16/253,537.58
  6. Step 6: Final answer
    x = 191,528.16

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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.