Home / 228,736.32-315,656.20-139,312.32

Finding the Fourth Proportional to 228,736.32, 315,656.20 and 139,312.32

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Solution

The fourth proportional to 228,736.32, 315,656.20 and 139,312.32 is: 192,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,736.32 : 315,656.20 = 139,312.32 : x
  2. Step 2: Convert to fraction form
    228,736.32/315,656.20 = 139,312.32/x
  3. Step 3: Cross multiply
    228,736.32x = 315,656.20 × 139,312.32
  4. Step 4: Simplify right side
    228,736.32x = 43,974,797,544.38
  5. Step 5: Solve for x
    x = 43,974,797,544.38/228,736.32
  6. Step 6: Final answer
    x = 192,251.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.