Home / 228,943.17-315,920.70-126,968.32

Finding the Fourth Proportional to 228,943.17, 315,920.70 and 126,968.32

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Solution

The fourth proportional to 228,943.17, 315,920.70 and 126,968.32 is: 175,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,943.17 : 315,920.70 = 126,968.32 : x
  2. Step 2: Convert to fraction form
    228,943.17/315,920.70 = 126,968.32/x
  3. Step 3: Cross multiply
    228,943.17x = 315,920.70 × 126,968.32
  4. Step 4: Simplify right side
    228,943.17x = 40,111,919,742.42
  5. Step 5: Solve for x
    x = 40,111,919,742.42/228,943.17
  6. Step 6: Final answer
    x = 175,204.70

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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.