Home / 380,889.77-571,155.57-140,837.81

Finding the Fourth Proportional to 380,889.77, 571,155.57 and 140,837.81

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Solution

The fourth proportional to 380,889.77, 571,155.57 and 140,837.81 is: 211,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,889.77 : 571,155.57 = 140,837.81 : x
  2. Step 2: Convert to fraction form
    380,889.77/571,155.57 = 140,837.81/x
  3. Step 3: Cross multiply
    380,889.77x = 571,155.57 × 140,837.81
  4. Step 4: Simplify right side
    380,889.77x = 80,440,296,792.32
  5. Step 5: Solve for x
    x = 80,440,296,792.32/380,889.77
  6. Step 6: Final answer
    x = 211,190.49

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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.