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Finding the Fourth Proportional to 436,898.69, 602,881.81 and 243,291.78

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Solution

The fourth proportional to 436,898.69, 602,881.81 and 243,291.78 is: 335,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,898.69 : 602,881.81 = 243,291.78 : x
  2. Step 2: Convert to fraction form
    436,898.69/602,881.81 = 243,291.78/x
  3. Step 3: Cross multiply
    436,898.69x = 602,881.81 × 243,291.78
  4. Step 4: Simplify right side
    436,898.69x = 146,676,188,684.52
  5. Step 5: Solve for x
    x = 146,676,188,684.52/436,898.69
  6. Step 6: Final answer
    x = 335,721.28

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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.