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Finding the Fourth Proportional to 301,258.80, 451,888.20 and 90,869.40

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Solution

The fourth proportional to 301,258.80, 451,888.20 and 90,869.40 is: 136,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,258.80 : 451,888.20 = 90,869.40 : x
  2. Step 2: Convert to fraction form
    301,258.80/451,888.20 = 90,869.40/x
  3. Step 3: Cross multiply
    301,258.80x = 451,888.20 × 90,869.40
  4. Step 4: Simplify right side
    301,258.80x = 41,062,809,601.08
  5. Step 5: Solve for x
    x = 41,062,809,601.08/301,258.80
  6. Step 6: Final answer
    x = 136,304.10

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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.