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Finding the Fourth Proportional to 299,304.72, 412,983.36 and 171,985.68

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Solution

The fourth proportional to 299,304.72, 412,983.36 and 171,985.68 is: 237,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,304.72 : 412,983.36 = 171,985.68 : x
  2. Step 2: Convert to fraction form
    299,304.72/412,983.36 = 171,985.68/x
  3. Step 3: Cross multiply
    299,304.72x = 412,983.36 × 171,985.68
  4. Step 4: Simplify right side
    299,304.72x = 71,027,223,998.28
  5. Step 5: Solve for x
    x = 71,027,223,998.28/299,304.72
  6. Step 6: Final answer
    x = 237,307.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.