Home / 228,530.58-315,334.71-143,587.50

Finding the Fourth Proportional to 228,530.58, 315,334.71 and 143,587.50

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Solution

The fourth proportional to 228,530.58, 315,334.71 and 143,587.50 is: 198,127.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,530.58 : 315,334.71 = 143,587.50 : x
  2. Step 2: Convert to fraction form
    228,530.58/315,334.71 = 143,587.50/x
  3. Step 3: Cross multiply
    228,530.58x = 315,334.71 × 143,587.50
  4. Step 4: Simplify right side
    228,530.58x = 45,278,122,672.13
  5. Step 5: Solve for x
    x = 45,278,122,672.13/228,530.58
  6. Step 6: Final answer
    x = 198,127.19

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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.