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Finding the Fourth Proportional to 154,590.40, 231,885.60 and 144,145.60

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Solution

The fourth proportional to 154,590.40, 231,885.60 and 144,145.60 is: 216,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,590.40 : 231,885.60 = 144,145.60 : x
  2. Step 2: Convert to fraction form
    154,590.40/231,885.60 = 144,145.60/x
  3. Step 3: Cross multiply
    154,590.40x = 231,885.60 × 144,145.60
  4. Step 4: Simplify right side
    154,590.40x = 33,425,288,943.36
  5. Step 5: Solve for x
    x = 33,425,288,943.36/154,590.40
  6. Step 6: Final answer
    x = 216,218.40

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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.