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Finding the Fourth Proportional to 310,548.60, 465,822.90 and 216,070.20

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Solution

The fourth proportional to 310,548.60, 465,822.90 and 216,070.20 is: 324,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,548.60 : 465,822.90 = 216,070.20 : x
  2. Step 2: Convert to fraction form
    310,548.60/465,822.90 = 216,070.20/x
  3. Step 3: Cross multiply
    310,548.60x = 465,822.90 × 216,070.20
  4. Step 4: Simplify right side
    310,548.60x = 100,650,447,167.58
  5. Step 5: Solve for x
    x = 100,650,447,167.58/310,548.60
  6. Step 6: Final answer
    x = 324,105.30

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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.