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Finding the Fourth Proportional to 375,671.56, 563,728.47 and 139,179.10

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Solution

The fourth proportional to 375,671.56, 563,728.47 and 139,179.10 is: 208,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,671.56 : 563,728.47 = 139,179.10 : x
  2. Step 2: Convert to fraction form
    375,671.56/563,728.47 = 139,179.10/x
  3. Step 3: Cross multiply
    375,671.56x = 563,728.47 × 139,179.10
  4. Step 4: Simplify right side
    375,671.56x = 78,459,221,098.98
  5. Step 5: Solve for x
    x = 78,459,221,098.98/375,671.56
  6. Step 6: Final answer
    x = 208,850.57

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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.