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Finding the Fourth Proportional to 503,148.63, 754,569.32 and 143,348.86

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Solution

The fourth proportional to 503,148.63, 754,569.32 and 143,348.86 is: 214,979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,148.63 : 754,569.32 = 143,348.86 : x
  2. Step 2: Convert to fraction form
    503,148.63/754,569.32 = 143,348.86/x
  3. Step 3: Cross multiply
    503,148.63x = 754,569.32 × 143,348.86
  4. Step 4: Simplify right side
    503,148.63x = 108,166,651,812.98
  5. Step 5: Solve for x
    x = 108,166,651,812.98/503,148.63
  6. Step 6: Final answer
    x = 214,979.52

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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.