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Finding the Fourth Proportional to 269,779.86, 372,238.47 and 156,541.86

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Solution

The fourth proportional to 269,779.86, 372,238.47 and 156,541.86 is: 215,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,779.86 : 372,238.47 = 156,541.86 : x
  2. Step 2: Convert to fraction form
    269,779.86/372,238.47 = 156,541.86/x
  3. Step 3: Cross multiply
    269,779.86x = 372,238.47 × 156,541.86
  4. Step 4: Simplify right side
    269,779.86x = 58,270,902,457.35
  5. Step 5: Solve for x
    x = 58,270,902,457.35/269,779.86
  6. Step 6: Final answer
    x = 215,994.26

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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.