Home / 286,832.82-430,445.24-99,844.32

Finding the Fourth Proportional to 286,832.82, 430,445.24 and 99,844.32

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Solution

The fourth proportional to 286,832.82, 430,445.24 and 99,844.32 is: 149,834.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,832.82 : 430,445.24 = 99,844.32 : x
  2. Step 2: Convert to fraction form
    286,832.82/430,445.24 = 99,844.32/x
  3. Step 3: Cross multiply
    286,832.82x = 430,445.24 × 99,844.32
  4. Step 4: Simplify right side
    286,832.82x = 42,977,512,285.04
  5. Step 5: Solve for x
    x = 42,977,512,285.04/286,832.82
  6. Step 6: Final answer
    x = 149,834.71

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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.