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Finding the Fourth Proportional to 380,663.76, 525,218.76 and 237,493.20

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Solution

The fourth proportional to 380,663.76, 525,218.76 and 237,493.20 is: 327,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,663.76 : 525,218.76 = 237,493.20 : x
  2. Step 2: Convert to fraction form
    380,663.76/525,218.76 = 237,493.20/x
  3. Step 3: Cross multiply
    380,663.76x = 525,218.76 × 237,493.20
  4. Step 4: Simplify right side
    380,663.76x = 124,735,884,012.43
  5. Step 5: Solve for x
    x = 124,735,884,012.43/380,663.76
  6. Step 6: Final answer
    x = 327,679.96

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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.