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Finding the Fourth Proportional to 424,011.81, 636,007.71 and 104,163.17

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Solution

The fourth proportional to 424,011.81, 636,007.71 and 104,163.17 is: 156,242.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,011.81 : 636,007.71 = 104,163.17 : x
  2. Step 2: Convert to fraction form
    424,011.81/636,007.71 = 104,163.17/x
  3. Step 3: Cross multiply
    424,011.81x = 636,007.71 × 104,163.17
  4. Step 4: Simplify right side
    424,011.81x = 66,248,576,038.00
  5. Step 5: Solve for x
    x = 66,248,576,038.00/424,011.81
  6. Step 6: Final answer
    x = 156,242.29

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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.