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Finding the Fourth Proportional to 310,364.40, 465,546.60 and 276,903.30

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Solution

The fourth proportional to 310,364.40, 465,546.60 and 276,903.30 is: 415,354.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,364.40 : 465,546.60 = 276,903.30 : x
  2. Step 2: Convert to fraction form
    310,364.40/465,546.60 = 276,903.30/x
  3. Step 3: Cross multiply
    310,364.40x = 465,546.60 × 276,903.30
  4. Step 4: Simplify right side
    310,364.40x = 128,911,389,843.78
  5. Step 5: Solve for x
    x = 128,911,389,843.78/310,364.40
  6. Step 6: Final answer
    x = 415,354.95

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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.