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Finding the Fourth Proportional to 424,636.36, 637,038.06 and 140,315.44

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Solution

The fourth proportional to 424,636.36, 637,038.06 and 140,315.44 is: 210,500.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,636.36 : 637,038.06 = 140,315.44 : x
  2. Step 2: Convert to fraction form
    424,636.36/637,038.06 = 140,315.44/x
  3. Step 3: Cross multiply
    424,636.36x = 637,038.06 × 140,315.44
  4. Step 4: Simplify right side
    424,636.36x = 89,386,275,685.65
  5. Step 5: Solve for x
    x = 89,386,275,685.65/424,636.36
  6. Step 6: Final answer
    x = 210,500.76

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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.