Home / 228,856.32-315,709.36-198,599.12

Finding the Fourth Proportional to 228,856.32, 315,709.36 and 198,599.12

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Solution

The fourth proportional to 228,856.32, 315,709.36 and 198,599.12 is: 273,969.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,856.32 : 315,709.36 = 198,599.12 : x
  2. Step 2: Convert to fraction form
    228,856.32/315,709.36 = 198,599.12/x
  3. Step 3: Cross multiply
    228,856.32x = 315,709.36 × 198,599.12
  4. Step 4: Simplify right side
    228,856.32x = 62,699,601,071.76
  5. Step 5: Solve for x
    x = 62,699,601,071.76/228,856.32
  6. Step 6: Final answer
    x = 273,969.28

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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.