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Finding the Fourth Proportional to 291,955.05, 402,900.89 and 171,167.85

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Solution

The fourth proportional to 291,955.05, 402,900.89 and 171,167.85 is: 236,213.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,955.05 : 402,900.89 = 171,167.85 : x
  2. Step 2: Convert to fraction form
    291,955.05/402,900.89 = 171,167.85/x
  3. Step 3: Cross multiply
    291,955.05x = 402,900.89 × 171,167.85
  4. Step 4: Simplify right side
    291,955.05x = 68,963,678,248.55
  5. Step 5: Solve for x
    x = 68,963,678,248.55/291,955.05
  6. Step 6: Final answer
    x = 236,213.34

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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.