Home / 315,316.80-472,975.20-268,077.60

Finding the Fourth Proportional to 315,316.80, 472,975.20 and 268,077.60

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Solution

The fourth proportional to 315,316.80, 472,975.20 and 268,077.60 is: 402,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,316.80 : 472,975.20 = 268,077.60 : x
  2. Step 2: Convert to fraction form
    315,316.80/472,975.20 = 268,077.60/x
  3. Step 3: Cross multiply
    315,316.80x = 472,975.20 × 268,077.60
  4. Step 4: Simplify right side
    315,316.80x = 126,794,056,475.52
  5. Step 5: Solve for x
    x = 126,794,056,475.52/315,316.80
  6. Step 6: Final answer
    x = 402,116.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.