Home / 291,927.24-437,840.64-81,515.16

Finding the Fourth Proportional to 291,927.24, 437,840.64 and 81,515.16

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Solution

The fourth proportional to 291,927.24, 437,840.64 and 81,515.16 is: 122,258.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,927.24 : 437,840.64 = 81,515.16 : x
  2. Step 2: Convert to fraction form
    291,927.24/437,840.64 = 81,515.16/x
  3. Step 3: Cross multiply
    291,927.24x = 437,840.64 × 81,515.16
  4. Step 4: Simplify right side
    291,927.24x = 35,690,649,824.10
  5. Step 5: Solve for x
    x = 35,690,649,824.10/291,927.24
  6. Step 6: Final answer
    x = 122,258.72

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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.