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Finding the Fourth Proportional to 310,534.20, 465,801.30 and 210,150.90

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Solution

The fourth proportional to 310,534.20, 465,801.30 and 210,150.90 is: 315,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,534.20 : 465,801.30 = 210,150.90 : x
  2. Step 2: Convert to fraction form
    310,534.20/465,801.30 = 210,150.90/x
  3. Step 3: Cross multiply
    310,534.20x = 465,801.30 × 210,150.90
  4. Step 4: Simplify right side
    310,534.20x = 97,888,562,416.17
  5. Step 5: Solve for x
    x = 97,888,562,416.17/310,534.20
  6. Step 6: Final answer
    x = 315,226.35

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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.