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Finding the Fourth Proportional to 380,813.18, 525,522.18 and 211,058.24

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Solution

The fourth proportional to 380,813.18, 525,522.18 and 211,058.24 is: 291,260.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,813.18 : 525,522.18 = 211,058.24 : x
  2. Step 2: Convert to fraction form
    380,813.18/525,522.18 = 211,058.24/x
  3. Step 3: Cross multiply
    380,813.18x = 525,522.18 × 211,058.24
  4. Step 4: Simplify right side
    380,813.18x = 110,915,786,391.76
  5. Step 5: Solve for x
    x = 110,915,786,391.76/380,813.18
  6. Step 6: Final answer
    x = 291,260.37

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1.5x scale

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.