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Finding the Fourth Proportional to 243,814.48, 336,328.53 and 141,828.46

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Solution

The fourth proportional to 243,814.48, 336,328.53 and 141,828.46 is: 195,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,814.48 : 336,328.53 = 141,828.46 : x
  2. Step 2: Convert to fraction form
    243,814.48/336,328.53 = 141,828.46/x
  3. Step 3: Cross multiply
    243,814.48x = 336,328.53 × 141,828.46
  4. Step 4: Simplify right side
    243,814.48x = 47,700,957,463.96
  5. Step 5: Solve for x
    x = 47,700,957,463.96/243,814.48
  6. Step 6: Final answer
    x = 195,644.48

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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.