Home / 262,247.10-393,370.65-256,998.30

Finding the Fourth Proportional to 262,247.10, 393,370.65 and 256,998.30

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Solution

The fourth proportional to 262,247.10, 393,370.65 and 256,998.30 is: 385,497.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,247.10 : 393,370.65 = 256,998.30 : x
  2. Step 2: Convert to fraction form
    262,247.10/393,370.65 = 256,998.30/x
  3. Step 3: Cross multiply
    262,247.10x = 393,370.65 × 256,998.30
  4. Step 4: Simplify right side
    262,247.10x = 101,095,588,319.90
  5. Step 5: Solve for x
    x = 101,095,588,319.90/262,247.10
  6. Step 6: Final answer
    x = 385,497.45

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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.