Home / 291,436.32-437,155.26-81,074.28

Finding the Fourth Proportional to 291,436.32, 437,155.26 and 81,074.28

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Solution

The fourth proportional to 291,436.32, 437,155.26 and 81,074.28 is: 121,611.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,436.32 : 437,155.26 = 81,074.28 : x
  2. Step 2: Convert to fraction form
    291,436.32/437,155.26 = 81,074.28/x
  3. Step 3: Cross multiply
    291,436.32x = 437,155.26 × 81,074.28
  4. Step 4: Simplify right side
    291,436.32x = 35,442,047,952.71
  5. Step 5: Solve for x
    x = 35,442,047,952.71/291,436.32
  6. Step 6: Final answer
    x = 121,611.64

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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.