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Finding the Fourth Proportional to 508,347.96, 761,989.84 and 171,272.16

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Solution

The fourth proportional to 508,347.96, 761,989.84 and 171,272.16 is: 256,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,347.96 : 761,989.84 = 171,272.16 : x
  2. Step 2: Convert to fraction form
    508,347.96/761,989.84 = 171,272.16/x
  3. Step 3: Cross multiply
    508,347.96x = 761,989.84 × 171,272.16
  4. Step 4: Simplify right side
    508,347.96x = 130,507,645,794.85
  5. Step 5: Solve for x
    x = 130,507,645,794.85/508,347.96
  6. Step 6: Final answer
    x = 256,728.97

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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.