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Finding the Fourth Proportional to 424,317.66, 636,476.49 and 199,538.34

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Solution

The fourth proportional to 424,317.66, 636,476.49 and 199,538.34 is: 299,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,317.66 : 636,476.49 = 199,538.34 : x
  2. Step 2: Convert to fraction form
    424,317.66/636,476.49 = 199,538.34/x
  3. Step 3: Cross multiply
    424,317.66x = 636,476.49 × 199,538.34
  4. Step 4: Simplify right side
    424,317.66x = 127,001,462,263.63
  5. Step 5: Solve for x
    x = 127,001,462,263.63/424,317.66
  6. Step 6: Final answer
    x = 299,307.51

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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.