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Finding the Fourth Proportional to 348,038.60, 522,057.90 and 288,992.20

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Solution

The fourth proportional to 348,038.60, 522,057.90 and 288,992.20 is: 433,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,038.60 : 522,057.90 = 288,992.20 : x
  2. Step 2: Convert to fraction form
    348,038.60/522,057.90 = 288,992.20/x
  3. Step 3: Cross multiply
    348,038.60x = 522,057.90 × 288,992.20
  4. Step 4: Simplify right side
    348,038.60x = 150,870,661,048.38
  5. Step 5: Solve for x
    x = 150,870,661,048.38/348,038.60
  6. Step 6: Final answer
    x = 433,488.30

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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.