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Finding the Fourth Proportional to 315,030.80, 472,546.20 and 310,883.60

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Solution

The fourth proportional to 315,030.80, 472,546.20 and 310,883.60 is: 466,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,030.80 : 472,546.20 = 310,883.60 : x
  2. Step 2: Convert to fraction form
    315,030.80/472,546.20 = 310,883.60/x
  3. Step 3: Cross multiply
    315,030.80x = 472,546.20 × 310,883.60
  4. Step 4: Simplify right side
    315,030.80x = 146,906,863,822.32
  5. Step 5: Solve for x
    x = 146,906,863,822.32/315,030.80
  6. Step 6: Final answer
    x = 466,325.40

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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.