Home / 228,478.46-315,304.18-125,121.74

Finding the Fourth Proportional to 228,478.46, 315,304.18 and 125,121.74

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Solution

The fourth proportional to 228,478.46, 315,304.18 and 125,121.74 is: 172,670.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,478.46 : 315,304.18 = 125,121.74 : x
  2. Step 2: Convert to fraction form
    228,478.46/315,304.18 = 125,121.74/x
  3. Step 3: Cross multiply
    228,478.46x = 315,304.18 × 125,121.74
  4. Step 4: Simplify right side
    228,478.46x = 39,451,405,741.55
  5. Step 5: Solve for x
    x = 39,451,405,741.55/228,478.46
  6. Step 6: Final answer
    x = 172,670.14

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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.