Home / 291,454.15-437,196.83-91,790.09

Finding the Fourth Proportional to 291,454.15, 437,196.83 and 91,790.09

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Solution

The fourth proportional to 291,454.15, 437,196.83 and 91,790.09 is: 137,690.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,454.15 : 437,196.83 = 91,790.09 : x
  2. Step 2: Convert to fraction form
    291,454.15/437,196.83 = 91,790.09/x
  3. Step 3: Cross multiply
    291,454.15x = 437,196.83 × 91,790.09
  4. Step 4: Simplify right side
    291,454.15x = 40,130,336,373.41
  5. Step 5: Solve for x
    x = 40,130,336,373.41/291,454.15
  6. Step 6: Final answer
    x = 137,690.05

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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.