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Finding the Fourth Proportional to 291,887.15, 437,830.72 and 134,248.19

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Solution

The fourth proportional to 291,887.15, 437,830.72 and 134,248.19 is: 201,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,887.15 : 437,830.72 = 134,248.19 : x
  2. Step 2: Convert to fraction form
    291,887.15/437,830.72 = 134,248.19/x
  3. Step 3: Cross multiply
    291,887.15x = 437,830.72 × 134,248.19
  4. Step 4: Simplify right side
    291,887.15x = 58,777,979,161.62
  5. Step 5: Solve for x
    x = 58,777,979,161.62/291,887.15
  6. Step 6: Final answer
    x = 201,372.28

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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.