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Finding the Fourth Proportional to 375,362.55, 517,871.61 and 214,101.54

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Solution

The fourth proportional to 375,362.55, 517,871.61 and 214,101.54 is: 295,386.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,362.55 : 517,871.61 = 214,101.54 : x
  2. Step 2: Convert to fraction form
    375,362.55/517,871.61 = 214,101.54/x
  3. Step 3: Cross multiply
    375,362.55x = 517,871.61 × 214,101.54
  4. Step 4: Simplify right side
    375,362.55x = 110,877,109,223.28
  5. Step 5: Solve for x
    x = 110,877,109,223.28/375,362.55
  6. Step 6: Final answer
    x = 295,386.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.