Home / 264,887.08-397,396.86-87,404.20

Finding the Fourth Proportional to 264,887.08, 397,396.86 and 87,404.20

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Solution

The fourth proportional to 264,887.08, 397,396.86 and 87,404.20 is: 131,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,887.08 : 397,396.86 = 87,404.20 : x
  2. Step 2: Convert to fraction form
    264,887.08/397,396.86 = 87,404.20/x
  3. Step 3: Cross multiply
    264,887.08x = 397,396.86 × 87,404.20
  4. Step 4: Simplify right side
    264,887.08x = 34,734,154,630.81
  5. Step 5: Solve for x
    x = 34,734,154,630.81/264,887.08
  6. Step 6: Final answer
    x = 131,128.16

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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.