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Finding the Fourth Proportional to 380,503.08, 525,092.94 and 219,357.36

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Solution

The fourth proportional to 380,503.08, 525,092.94 and 219,357.36 is: 302,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,503.08 : 525,092.94 = 219,357.36 : x
  2. Step 2: Convert to fraction form
    380,503.08/525,092.94 = 219,357.36/x
  3. Step 3: Cross multiply
    380,503.08x = 525,092.94 × 219,357.36
  4. Step 4: Simplify right side
    380,503.08x = 115,183,001,073.04
  5. Step 5: Solve for x
    x = 115,183,001,073.04/380,503.08
  6. Step 6: Final answer
    x = 302,712.40

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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.