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Finding the Fourth Proportional to 307,360.46, 424,158.80 and 171,394.00

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Solution

The fourth proportional to 307,360.46, 424,158.80 and 171,394.00 is: 236,524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,360.46 : 424,158.80 = 171,394.00 : x
  2. Step 2: Convert to fraction form
    307,360.46/424,158.80 = 171,394.00/x
  3. Step 3: Cross multiply
    307,360.46x = 424,158.80 × 171,394.00
  4. Step 4: Simplify right side
    307,360.46x = 72,698,271,449.83
  5. Step 5: Solve for x
    x = 72,698,271,449.83/307,360.46
  6. Step 6: Final answer
    x = 236,524.47

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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.