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Finding the Fourth Proportional to 469,938, 648,403.24 and 265,988.89

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Solution

The fourth proportional to 469,938, 648,403.24 and 265,988.89 is: 367,001.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,938 : 648,403.24 = 265,988.89 : x
  2. Step 2: Convert to fraction form
    469,938/648,403.24 = 265,988.89/x
  3. Step 3: Cross multiply
    469,938x = 648,403.24 × 265,988.89
  4. Step 4: Simplify right side
    469,938x = 172,468,058,080.00
  5. Step 5: Solve for x
    x = 172,468,058,080.00/469,938
  6. Step 6: Final answer
    x = 367,001.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.