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Finding the Fourth Proportional to 285,510.33, 394,430.85 and 187,625.07

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Solution

The fourth proportional to 285,510.33, 394,430.85 and 187,625.07 is: 259,202.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,510.33 : 394,430.85 = 187,625.07 : x
  2. Step 2: Convert to fraction form
    285,510.33/394,430.85 = 187,625.07/x
  3. Step 3: Cross multiply
    285,510.33x = 394,430.85 × 187,625.07
  4. Step 4: Simplify right side
    285,510.33x = 74,005,115,841.41
  5. Step 5: Solve for x
    x = 74,005,115,841.41/285,510.33
  6. Step 6: Final answer
    x = 259,202.94

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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.