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Finding the Fourth Proportional to 262,240.70, 393,330.81 and 72,715.10

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Solution

The fourth proportional to 262,240.70, 393,330.81 and 72,715.10 is: 109,064.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,240.70 : 393,330.81 = 72,715.10 : x
  2. Step 2: Convert to fraction form
    262,240.70/393,330.81 = 72,715.10/x
  3. Step 3: Cross multiply
    262,240.70x = 393,330.81 × 72,715.10
  4. Step 4: Simplify right side
    262,240.70x = 28,601,089,182.23
  5. Step 5: Solve for x
    x = 28,601,089,182.23/262,240.70
  6. Step 6: Final answer
    x = 109,064.26

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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.