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Finding the Fourth Proportional to 264,319.08, 396,520.08 and 86,785.68

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Solution

The fourth proportional to 264,319.08, 396,520.08 and 86,785.68 is: 130,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,319.08 : 396,520.08 = 86,785.68 : x
  2. Step 2: Convert to fraction form
    264,319.08/396,520.08 = 86,785.68/x
  3. Step 3: Cross multiply
    264,319.08x = 396,520.08 × 86,785.68
  4. Step 4: Simplify right side
    264,319.08x = 34,412,264,776.45
  5. Step 5: Solve for x
    x = 34,412,264,776.45/264,319.08
  6. Step 6: Final answer
    x = 130,192.13

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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.