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Finding the Fourth Proportional to 291,484.93, 437,185.87 and 91,800.12

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Solution

The fourth proportional to 291,484.93, 437,185.87 and 91,800.12 is: 137,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,484.93 : 437,185.87 = 91,800.12 : x
  2. Step 2: Convert to fraction form
    291,484.93/437,185.87 = 91,800.12/x
  3. Step 3: Cross multiply
    291,484.93x = 437,185.87 × 91,800.12
  4. Step 4: Simplify right side
    291,484.93x = 40,133,714,869.30
  5. Step 5: Solve for x
    x = 40,133,714,869.30/291,484.93
  6. Step 6: Final answer
    x = 137,687.10

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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.