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Finding the Fourth Proportional to 310,830.20, 465,467.70 and 248,622.20

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Solution

The fourth proportional to 310,830.20, 465,467.70 and 248,622.20 is: 372,311.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,830.20 : 465,467.70 = 248,622.20 : x
  2. Step 2: Convert to fraction form
    310,830.20/465,467.70 = 248,622.20/x
  3. Step 3: Cross multiply
    310,830.20x = 465,467.70 × 248,622.20
  4. Step 4: Simplify right side
    310,830.20x = 115,725,603,602.94
  5. Step 5: Solve for x
    x = 115,725,603,602.94/310,830.20
  6. Step 6: Final answer
    x = 372,311.32

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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.