Home / 293,612.12-440,427.32-139,704.38

Finding the Fourth Proportional to 293,612.12, 440,427.32 and 139,704.38

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Solution

The fourth proportional to 293,612.12, 440,427.32 and 139,704.38 is: 209,560.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,612.12 : 440,427.32 = 139,704.38 : x
  2. Step 2: Convert to fraction form
    293,612.12/440,427.32 = 139,704.38/x
  3. Step 3: Cross multiply
    293,612.12x = 440,427.32 × 139,704.38
  4. Step 4: Simplify right side
    293,612.12x = 61,529,624,977.14
  5. Step 5: Solve for x
    x = 61,529,624,977.14/293,612.12
  6. Step 6: Final answer
    x = 209,560.92

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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.