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Finding the Fourth Proportional to 369,553.36, 510,114.72 and 218,650

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Solution

The fourth proportional to 369,553.36, 510,114.72 and 218,650 is: 301,814.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,553.36 : 510,114.72 = 218,650 : x
  2. Step 2: Convert to fraction form
    369,553.36/510,114.72 = 218,650/x
  3. Step 3: Cross multiply
    369,553.36x = 510,114.72 × 218,650
  4. Step 4: Simplify right side
    369,553.36x = 111,536,583,528
  5. Step 5: Solve for x
    x = 111,536,583,528/369,553.36
  6. Step 6: Final answer
    x = 301,814.56

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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.