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Finding the Fourth Proportional to 438,907.23, 658,360.73 and 123,364.10

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Solution

The fourth proportional to 438,907.23, 658,360.73 and 123,364.10 is: 185,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,907.23 : 658,360.73 = 123,364.10 : x
  2. Step 2: Convert to fraction form
    438,907.23/658,360.73 = 123,364.10/x
  3. Step 3: Cross multiply
    438,907.23x = 658,360.73 × 123,364.10
  4. Step 4: Simplify right side
    438,907.23x = 81,218,075,023.17
  5. Step 5: Solve for x
    x = 81,218,075,023.17/438,907.23
  6. Step 6: Final answer
    x = 185,046.11

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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.