Home / 282,746.25-390,190.64-161,889.39

Finding the Fourth Proportional to 282,746.25, 390,190.64 and 161,889.39

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Solution

The fourth proportional to 282,746.25, 390,190.64 and 161,889.39 is: 223,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,746.25 : 390,190.64 = 161,889.39 : x
  2. Step 2: Convert to fraction form
    282,746.25/390,190.64 = 161,889.39/x
  3. Step 3: Cross multiply
    282,746.25x = 390,190.64 × 161,889.39
  4. Step 4: Simplify right side
    282,746.25x = 63,167,723,883.86
  5. Step 5: Solve for x
    x = 63,167,723,883.86/282,746.25
  6. Step 6: Final answer
    x = 223,407.82

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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.