Home / 253,402.30-349,690.71-145,972

Finding the Fourth Proportional to 253,402.30, 349,690.71 and 145,972

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Solution

The fourth proportional to 253,402.30, 349,690.71 and 145,972 is: 201,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,402.30 : 349,690.71 = 145,972 : x
  2. Step 2: Convert to fraction form
    253,402.30/349,690.71 = 145,972/x
  3. Step 3: Cross multiply
    253,402.30x = 349,690.71 × 145,972
  4. Step 4: Simplify right side
    253,402.30x = 51,045,052,320.12
  5. Step 5: Solve for x
    x = 51,045,052,320.12/253,402.30
  6. Step 6: Final answer
    x = 201,438.79

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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.