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Finding the Fourth Proportional to 610,442.98, 915,795.71 and 205,675.41

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Solution

The fourth proportional to 610,442.98, 915,795.71 and 205,675.41 is: 308,557.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,442.98 : 915,795.71 = 205,675.41 : x
  2. Step 2: Convert to fraction form
    610,442.98/915,795.71 = 205,675.41/x
  3. Step 3: Cross multiply
    610,442.98x = 915,795.71 × 205,675.41
  4. Step 4: Simplify right side
    610,442.98x = 188,356,657,102.11
  5. Step 5: Solve for x
    x = 188,356,657,102.11/610,442.98
  6. Step 6: Final answer
    x = 308,557.33

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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.