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Finding the Fourth Proportional to 507,998.15, 761,463.82 and 170,921.78

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Solution

The fourth proportional to 507,998.15, 761,463.82 and 170,921.78 is: 256,203.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,998.15 : 761,463.82 = 170,921.78 : x
  2. Step 2: Convert to fraction form
    507,998.15/761,463.82 = 170,921.78/x
  3. Step 3: Cross multiply
    507,998.15x = 761,463.82 × 170,921.78
  4. Step 4: Simplify right side
    507,998.15x = 130,150,746,858.07
  5. Step 5: Solve for x
    x = 130,150,746,858.07/507,998.15
  6. Step 6: Final answer
    x = 256,203.19

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Similar ratio
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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.