Home / 256,513.23-384,430.86-185,672.66

Finding the Fourth Proportional to 256,513.23, 384,430.86 and 185,672.66

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Solution

The fourth proportional to 256,513.23, 384,430.86 and 185,672.66 is: 278,263.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,513.23 : 384,430.86 = 185,672.66 : x
  2. Step 2: Convert to fraction form
    256,513.23/384,430.86 = 185,672.66/x
  3. Step 3: Cross multiply
    256,513.23x = 384,430.86 × 185,672.66
  4. Step 4: Simplify right side
    256,513.23x = 71,378,298,440.13
  5. Step 5: Solve for x
    x = 71,378,298,440.13/256,513.23
  6. Step 6: Final answer
    x = 278,263.61

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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.