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Finding the Fourth Proportional to 252,990.24, 349,123.32 and 139,810.56

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Solution

The fourth proportional to 252,990.24, 349,123.32 and 139,810.56 is: 192,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,990.24 : 349,123.32 = 139,810.56 : x
  2. Step 2: Convert to fraction form
    252,990.24/349,123.32 = 139,810.56/x
  3. Step 3: Cross multiply
    252,990.24x = 349,123.32 × 139,810.56
  4. Step 4: Simplify right side
    252,990.24x = 48,811,126,878.26
  5. Step 5: Solve for x
    x = 48,811,126,878.26/252,990.24
  6. Step 6: Final answer
    x = 192,936.80

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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.