Home / 228,929.17-315,954.53-126,977.31

Finding the Fourth Proportional to 228,929.17, 315,954.53 and 126,977.31

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Solution

The fourth proportional to 228,929.17, 315,954.53 and 126,977.31 is: 175,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,929.17 : 315,954.53 = 126,977.31 : x
  2. Step 2: Convert to fraction form
    228,929.17/315,954.53 = 126,977.31/x
  3. Step 3: Cross multiply
    228,929.17x = 315,954.53 × 126,977.31
  4. Step 4: Simplify right side
    228,929.17x = 40,119,054,087.06
  5. Step 5: Solve for x
    x = 40,119,054,087.06/228,929.17
  6. Step 6: Final answer
    x = 175,246.58

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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.