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Finding the Fourth Proportional to 580,307.25, 870,180.73 and 243,257.39

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Solution

The fourth proportional to 580,307.25, 870,180.73 and 243,257.39 is: 364,768.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,307.25 : 870,180.73 = 243,257.39 : x
  2. Step 2: Convert to fraction form
    580,307.25/870,180.73 = 243,257.39/x
  3. Step 3: Cross multiply
    580,307.25x = 870,180.73 × 243,257.39
  4. Step 4: Simplify right side
    580,307.25x = 211,677,893,208.10
  5. Step 5: Solve for x
    x = 211,677,893,208.10/580,307.25
  6. Step 6: Final answer
    x = 364,768.65

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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.