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Finding the Fourth Proportional to 314,689.29, 434,271.25 and 171,449.31

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Solution

The fourth proportional to 314,689.29, 434,271.25 and 171,449.31 is: 236,600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,689.29 : 434,271.25 = 171,449.31 : x
  2. Step 2: Convert to fraction form
    314,689.29/434,271.25 = 171,449.31/x
  3. Step 3: Cross multiply
    314,689.29x = 434,271.25 × 171,449.31
  4. Step 4: Simplify right side
    314,689.29x = 74,455,506,165.34
  5. Step 5: Solve for x
    x = 74,455,506,165.34/314,689.29
  6. Step 6: Final answer
    x = 236,600.06

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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.