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Finding the Fourth Proportional to 555,143, 832,737.54 and 161,159

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Solution

The fourth proportional to 555,143, 832,737.54 and 161,159 is: 241,745.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,143 : 832,737.54 = 161,159 : x
  2. Step 2: Convert to fraction form
    555,143/832,737.54 = 161,159/x
  3. Step 3: Cross multiply
    555,143x = 832,737.54 × 161,159
  4. Step 4: Simplify right side
    555,143x = 134,203,149,208.86
  5. Step 5: Solve for x
    x = 134,203,149,208.86/555,143
  6. Step 6: Final answer
    x = 241,745.19

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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.