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Finding the Fourth Proportional to 310,089.06, 427,896.63 and 187,627.05

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Solution

The fourth proportional to 310,089.06, 427,896.63 and 187,627.05 is: 258,909.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,089.06 : 427,896.63 = 187,627.05 : x
  2. Step 2: Convert to fraction form
    310,089.06/427,896.63 = 187,627.05/x
  3. Step 3: Cross multiply
    310,089.06x = 427,896.63 × 187,627.05
  4. Step 4: Simplify right side
    310,089.06x = 80,284,982,391.84
  5. Step 5: Solve for x
    x = 80,284,982,391.84/310,089.06
  6. Step 6: Final answer
    x = 258,909.43

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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.