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Finding the Fourth Proportional to 348,497.60, 522,055.20 and 207,838.40

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Solution

The fourth proportional to 348,497.60, 522,055.20 and 207,838.40 is: 311,345.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,497.60 : 522,055.20 = 207,838.40 : x
  2. Step 2: Convert to fraction form
    348,497.60/522,055.20 = 207,838.40/x
  3. Step 3: Cross multiply
    348,497.60x = 522,055.20 × 207,838.40
  4. Step 4: Simplify right side
    348,497.60x = 108,503,117,479.68
  5. Step 5: Solve for x
    x = 108,503,117,479.68/348,497.60
  6. Step 6: Final answer
    x = 311,345.38

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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.