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Finding the Fourth Proportional to 343,708.95, 515,440.44 and 119,009.10

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Solution

The fourth proportional to 343,708.95, 515,440.44 and 119,009.10 is: 178,471.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,708.95 : 515,440.44 = 119,009.10 : x
  2. Step 2: Convert to fraction form
    343,708.95/515,440.44 = 119,009.10/x
  3. Step 3: Cross multiply
    343,708.95x = 515,440.44 × 119,009.10
  4. Step 4: Simplify right side
    343,708.95x = 61,342,102,868.00
  5. Step 5: Solve for x
    x = 61,342,102,868.00/343,708.95
  6. Step 6: Final answer
    x = 178,471.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.