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Finding the Fourth Proportional to 339,569.80, 509,225.10 and 102,833.80

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Solution

The fourth proportional to 339,569.80, 509,225.10 and 102,833.80 is: 154,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,569.80 : 509,225.10 = 102,833.80 : x
  2. Step 2: Convert to fraction form
    339,569.80/509,225.10 = 102,833.80/x
  3. Step 3: Cross multiply
    339,569.80x = 509,225.10 × 102,833.80
  4. Step 4: Simplify right side
    339,569.80x = 52,365,552,088.38
  5. Step 5: Solve for x
    x = 52,365,552,088.38/339,569.80
  6. Step 6: Final answer
    x = 154,211.45

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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.