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Finding the Fourth Proportional to 375,670.56, 563,726.97 and 139,178.10

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Solution

The fourth proportional to 375,670.56, 563,726.97 and 139,178.10 is: 208,849.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,670.56 : 563,726.97 = 139,178.10 : x
  2. Step 2: Convert to fraction form
    375,670.56/563,726.97 = 139,178.10/x
  3. Step 3: Cross multiply
    375,670.56x = 563,726.97 × 139,178.10
  4. Step 4: Simplify right side
    375,670.56x = 78,458,448,603.36
  5. Step 5: Solve for x
    x = 78,458,448,603.36/375,670.56
  6. Step 6: Final answer
    x = 208,849.07

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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.