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Finding the Fourth Proportional to 555,012.51, 832,008.47 and 199,939.70

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Solution

The fourth proportional to 555,012.51, 832,008.47 and 199,939.70 is: 299,725.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,012.51 : 832,008.47 = 199,939.70 : x
  2. Step 2: Convert to fraction form
    555,012.51/832,008.47 = 199,939.70/x
  3. Step 3: Cross multiply
    555,012.51x = 832,008.47 × 199,939.70
  4. Step 4: Simplify right side
    555,012.51x = 166,351,523,889.26
  5. Step 5: Solve for x
    x = 166,351,523,889.26/555,012.51
  6. Step 6: Final answer
    x = 299,725.72

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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.