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Finding the Fourth Proportional to 304,078.40, 456,117.60 and 154,260.80

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Solution

The fourth proportional to 304,078.40, 456,117.60 and 154,260.80 is: 231,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,078.40 : 456,117.60 = 154,260.80 : x
  2. Step 2: Convert to fraction form
    304,078.40/456,117.60 = 154,260.80/x
  3. Step 3: Cross multiply
    304,078.40x = 456,117.60 × 154,260.80
  4. Step 4: Simplify right side
    304,078.40x = 70,361,065,870.08
  5. Step 5: Solve for x
    x = 70,361,065,870.08/304,078.40
  6. Step 6: Final answer
    x = 231,391.20

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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.