Home / 291,454.28-437,197.02-91,790.21

Finding the Fourth Proportional to 291,454.28, 437,197.02 and 91,790.21

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Solution

The fourth proportional to 291,454.28, 437,197.02 and 91,790.21 is: 137,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,454.28 : 437,197.02 = 91,790.21 : x
  2. Step 2: Convert to fraction form
    291,454.28/437,197.02 = 91,790.21/x
  3. Step 3: Cross multiply
    291,454.28x = 437,197.02 × 91,790.21
  4. Step 4: Simplify right side
    291,454.28x = 40,130,404,091.19
  5. Step 5: Solve for x
    x = 40,130,404,091.19/291,454.28
  6. Step 6: Final answer
    x = 137,690.22

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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.