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Finding the Fourth Proportional to 310,560.89, 465,509.18 and 141,828.38

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Solution

The fourth proportional to 310,560.89, 465,509.18 and 141,828.38 is: 212,590.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,560.89 : 465,509.18 = 141,828.38 : x
  2. Step 2: Convert to fraction form
    310,560.89/465,509.18 = 141,828.38/x
  3. Step 3: Cross multiply
    310,560.89x = 465,509.18 × 141,828.38
  4. Step 4: Simplify right side
    310,560.89x = 66,022,410,901.55
  5. Step 5: Solve for x
    x = 66,022,410,901.55/310,560.89
  6. Step 6: Final answer
    x = 212,590.87

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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.