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Finding the Fourth Proportional to 291,275.64, 437,083.28 and 122,785.64

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Solution

The fourth proportional to 291,275.64, 437,083.28 and 122,785.64 is: 184,250.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,275.64 : 437,083.28 = 122,785.64 : x
  2. Step 2: Convert to fraction form
    291,275.64/437,083.28 = 122,785.64/x
  3. Step 3: Cross multiply
    291,275.64x = 437,083.28 × 122,785.64
  4. Step 4: Simplify right side
    291,275.64x = 53,667,550,268.10
  5. Step 5: Solve for x
    x = 53,667,550,268.10/291,275.64
  6. Step 6: Final answer
    x = 184,250.05

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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.