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Finding the Fourth Proportional to 253,751.81, 350,161.08 and 139,030.29

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Solution

The fourth proportional to 253,751.81, 350,161.08 and 139,030.29 is: 191,852.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,751.81 : 350,161.08 = 139,030.29 : x
  2. Step 2: Convert to fraction form
    253,751.81/350,161.08 = 139,030.29/x
  3. Step 3: Cross multiply
    253,751.81x = 350,161.08 × 139,030.29
  4. Step 4: Simplify right side
    253,751.81x = 48,682,996,499.11
  5. Step 5: Solve for x
    x = 48,682,996,499.11/253,751.81
  6. Step 6: Final answer
    x = 191,852.81

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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.