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Finding the Fourth Proportional to 510,521.76, 765,782.40 and 195,010.56

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Solution

The fourth proportional to 510,521.76, 765,782.40 and 195,010.56 is: 292,515.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,521.76 : 765,782.40 = 195,010.56 : x
  2. Step 2: Convert to fraction form
    510,521.76/765,782.40 = 195,010.56/x
  3. Step 3: Cross multiply
    510,521.76x = 765,782.40 × 195,010.56
  4. Step 4: Simplify right side
    510,521.76x = 149,335,654,662.14
  5. Step 5: Solve for x
    x = 149,335,654,662.14/510,521.76
  6. Step 6: Final answer
    x = 292,515.75

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1.5x scale

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.