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Finding the Fourth Proportional to 154,054.40, 230,620.80 and 144,940.80

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Solution

The fourth proportional to 154,054.40, 230,620.80 and 144,940.80 is: 216,977.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,054.40 : 230,620.80 = 144,940.80 : x
  2. Step 2: Convert to fraction form
    154,054.40/230,620.80 = 144,940.80/x
  3. Step 3: Cross multiply
    154,054.40x = 230,620.80 × 144,940.80
  4. Step 4: Simplify right side
    154,054.40x = 33,426,363,248.64
  5. Step 5: Solve for x
    x = 33,426,363,248.64/154,054.40
  6. Step 6: Final answer
    x = 216,977.66

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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.