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Finding the Fourth Proportional to 320,258.88, 480,377.43 and 151,859.88

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Solution

The fourth proportional to 320,258.88, 480,377.43 and 151,859.88 is: 227,784.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,258.88 : 480,377.43 = 151,859.88 : x
  2. Step 2: Convert to fraction form
    320,258.88/480,377.43 = 151,859.88/x
  3. Step 3: Cross multiply
    320,258.88x = 480,377.43 × 151,859.88
  4. Step 4: Simplify right side
    320,258.88x = 72,950,058,874.51
  5. Step 5: Solve for x
    x = 72,950,058,874.51/320,258.88
  6. Step 6: Final answer
    x = 227,784.66

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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.