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Finding the Fourth Proportional to 262,145.70, 393,218.55 and 144,047.70

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Solution

The fourth proportional to 262,145.70, 393,218.55 and 144,047.70 is: 216,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,145.70 : 393,218.55 = 144,047.70 : x
  2. Step 2: Convert to fraction form
    262,145.70/393,218.55 = 144,047.70/x
  3. Step 3: Cross multiply
    262,145.70x = 393,218.55 × 144,047.70
  4. Step 4: Simplify right side
    262,145.70x = 56,642,227,724.84
  5. Step 5: Solve for x
    x = 56,642,227,724.84/262,145.70
  6. Step 6: Final answer
    x = 216,071.55

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Similar ratio
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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.