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Finding the Fourth Proportional to 260,082.84, 390,435.36 and 154,951.32

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Solution

The fourth proportional to 260,082.84, 390,435.36 and 154,951.32 is: 232,612.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,082.84 : 390,435.36 = 154,951.32 : x
  2. Step 2: Convert to fraction form
    260,082.84/390,435.36 = 154,951.32/x
  3. Step 3: Cross multiply
    260,082.84x = 390,435.36 × 154,951.32
  4. Step 4: Simplify right side
    260,082.84x = 60,498,474,406.68
  5. Step 5: Solve for x
    x = 60,498,474,406.68/260,082.84
  6. Step 6: Final answer
    x = 232,612.33

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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.