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Finding the Fourth Proportional to 343,353.80, 514,982.10 and 106,720.40

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Solution

The fourth proportional to 343,353.80, 514,982.10 and 106,720.40 is: 160,065.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,353.80 : 514,982.10 = 106,720.40 : x
  2. Step 2: Convert to fraction form
    343,353.80/514,982.10 = 106,720.40/x
  3. Step 3: Cross multiply
    343,353.80x = 514,982.10 × 106,720.40
  4. Step 4: Simplify right side
    343,353.80x = 54,959,095,704.84
  5. Step 5: Solve for x
    x = 54,959,095,704.84/343,353.80
  6. Step 6: Final answer
    x = 160,065.49

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1.5x scale

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.