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Finding the Fourth Proportional to 253,681.64, 350,315.99 and 189,908.72

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Solution

The fourth proportional to 253,681.64, 350,315.99 and 189,908.72 is: 262,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,681.64 : 350,315.99 = 189,908.72 : x
  2. Step 2: Convert to fraction form
    253,681.64/350,315.99 = 189,908.72/x
  3. Step 3: Cross multiply
    253,681.64x = 350,315.99 × 189,908.72
  4. Step 4: Simplify right side
    253,681.64x = 66,528,058,555.31
  5. Step 5: Solve for x
    x = 66,528,058,555.31/253,681.64
  6. Step 6: Final answer
    x = 262,250.20

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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.