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Finding the Fourth Proportional to 517,039.29, 775,568.66 and 162,045.45

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Solution

The fourth proportional to 517,039.29, 775,568.66 and 162,045.45 is: 243,071.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,039.29 : 775,568.66 = 162,045.45 : x
  2. Step 2: Convert to fraction form
    517,039.29/775,568.66 = 162,045.45/x
  3. Step 3: Cross multiply
    517,039.29x = 775,568.66 × 162,045.45
  4. Step 4: Simplify right side
    517,039.29x = 125,677,371,705.37
  5. Step 5: Solve for x
    x = 125,677,371,705.37/517,039.29
  6. Step 6: Final answer
    x = 243,071.22

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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.