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Finding the Fourth Proportional to 380,751.48, 525,370.28 and 217,333.35

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Solution

The fourth proportional to 380,751.48, 525,370.28 and 217,333.35 is: 299,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,751.48 : 525,370.28 = 217,333.35 : x
  2. Step 2: Convert to fraction form
    380,751.48/525,370.28 = 217,333.35/x
  3. Step 3: Cross multiply
    380,751.48x = 525,370.28 × 217,333.35
  4. Step 4: Simplify right side
    380,751.48x = 114,180,481,856.17
  5. Step 5: Solve for x
    x = 114,180,481,856.17/380,751.48
  6. Step 6: Final answer
    x = 299,881.91

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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.