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Finding the Fourth Proportional to 154,498.80, 231,748.20 and 49,328.40

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Solution

The fourth proportional to 154,498.80, 231,748.20 and 49,328.40 is: 73,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,498.80 : 231,748.20 = 49,328.40 : x
  2. Step 2: Convert to fraction form
    154,498.80/231,748.20 = 49,328.40/x
  3. Step 3: Cross multiply
    154,498.80x = 231,748.20 × 49,328.40
  4. Step 4: Simplify right side
    154,498.80x = 11,431,767,908.88
  5. Step 5: Solve for x
    x = 11,431,767,908.88/154,498.80
  6. Step 6: Final answer
    x = 73,992.60

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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.