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Finding the Fourth Proportional to 348,812.20, 523,218.30 and 342,907.30

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Solution

The fourth proportional to 348,812.20, 523,218.30 and 342,907.30 is: 514,360.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,812.20 : 523,218.30 = 342,907.30 : x
  2. Step 2: Convert to fraction form
    348,812.20/523,218.30 = 342,907.30/x
  3. Step 3: Cross multiply
    348,812.20x = 523,218.30 × 342,907.30
  4. Step 4: Simplify right side
    348,812.20x = 179,415,374,563.59
  5. Step 5: Solve for x
    x = 179,415,374,563.59/348,812.20
  6. Step 6: Final answer
    x = 514,360.95

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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.