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Finding the Fourth Proportional to 487,554.82, 731,201.19 and 171,970.18

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Solution

The fourth proportional to 487,554.82, 731,201.19 and 171,970.18 is: 257,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,554.82 : 731,201.19 = 171,970.18 : x
  2. Step 2: Convert to fraction form
    487,554.82/731,201.19 = 171,970.18/x
  3. Step 3: Cross multiply
    487,554.82x = 731,201.19 × 171,970.18
  4. Step 4: Simplify right side
    487,554.82x = 125,744,800,260.51
  5. Step 5: Solve for x
    x = 125,744,800,260.51/487,554.82
  6. Step 6: Final answer
    x = 257,909.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.