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Finding the Fourth Proportional to 348,025.40, 522,038.10 and 308,367.80

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Solution

The fourth proportional to 348,025.40, 522,038.10 and 308,367.80 is: 462,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,025.40 : 522,038.10 = 308,367.80 : x
  2. Step 2: Convert to fraction form
    348,025.40/522,038.10 = 308,367.80/x
  3. Step 3: Cross multiply
    348,025.40x = 522,038.10 × 308,367.80
  4. Step 4: Simplify right side
    348,025.40x = 160,979,740,413.18
  5. Step 5: Solve for x
    x = 160,979,740,413.18/348,025.40
  6. Step 6: Final answer
    x = 462,551.70

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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.