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Finding the Fourth Proportional to 314,870.52, 434,525.85 and 171,630.57

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Solution

The fourth proportional to 314,870.52, 434,525.85 and 171,630.57 is: 236,852.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,870.52 : 434,525.85 = 171,630.57 : x
  2. Step 2: Convert to fraction form
    314,870.52/434,525.85 = 171,630.57/x
  3. Step 3: Cross multiply
    314,870.52x = 434,525.85 × 171,630.57
  4. Step 4: Simplify right side
    314,870.52x = 74,577,919,315.23
  5. Step 5: Solve for x
    x = 74,577,919,315.23/314,870.52
  6. Step 6: Final answer
    x = 236,852.66

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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.