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Finding the Fourth Proportional to 343,650.40, 515,475.60 and 296,411.20

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Solution

The fourth proportional to 343,650.40, 515,475.60 and 296,411.20 is: 444,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,650.40 : 515,475.60 = 296,411.20 : x
  2. Step 2: Convert to fraction form
    343,650.40/515,475.60 = 296,411.20/x
  3. Step 3: Cross multiply
    343,650.40x = 515,475.60 × 296,411.20
  4. Step 4: Simplify right side
    343,650.40x = 152,792,741,166.72
  5. Step 5: Solve for x
    x = 152,792,741,166.72/343,650.40
  6. Step 6: Final answer
    x = 444,616.80

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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.