Home / 228,351.48-315,120-124,985.16

Finding the Fourth Proportional to 228,351.48, 315,120 and 124,985.16

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Solution

The fourth proportional to 228,351.48, 315,120 and 124,985.16 is: 172,476.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,351.48 : 315,120 = 124,985.16 : x
  2. Step 2: Convert to fraction form
    228,351.48/315,120 = 124,985.16/x
  3. Step 3: Cross multiply
    228,351.48x = 315,120 × 124,985.16
  4. Step 4: Simplify right side
    228,351.48x = 39,385,323,619.20
  5. Step 5: Solve for x
    x = 39,385,323,619.20/228,351.48
  6. Step 6: Final answer
    x = 172,476.76

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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.