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Finding the Fourth Proportional to 343,570.58, 515,527.73 and 154,166.34

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Solution

The fourth proportional to 343,570.58, 515,527.73 and 154,166.34 is: 231,326.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,570.58 : 515,527.73 = 154,166.34 : x
  2. Step 2: Convert to fraction form
    343,570.58/515,527.73 = 154,166.34/x
  3. Step 3: Cross multiply
    343,570.58x = 515,527.73 × 154,166.34
  4. Step 4: Simplify right side
    343,570.58x = 79,477,023,302.61
  5. Step 5: Solve for x
    x = 79,477,023,302.61/343,570.58
  6. Step 6: Final answer
    x = 231,326.63

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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.