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Finding the Fourth Proportional to 349,734.40, 525,638.40 and 304,115.20

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Solution

The fourth proportional to 349,734.40, 525,638.40 and 304,115.20 is: 457,074.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,734.40 : 525,638.40 = 304,115.20 : x
  2. Step 2: Convert to fraction form
    349,734.40/525,638.40 = 304,115.20/x
  3. Step 3: Cross multiply
    349,734.40x = 525,638.40 × 304,115.20
  4. Step 4: Simplify right side
    349,734.40x = 159,854,627,143.68
  5. Step 5: Solve for x
    x = 159,854,627,143.68/349,734.40
  6. Step 6: Final answer
    x = 457,074.36

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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.