Home / 312,118.20-430,724.22-168,878.24

Finding the Fourth Proportional to 312,118.20, 430,724.22 and 168,878.24

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Solution

The fourth proportional to 312,118.20, 430,724.22 and 168,878.24 is: 233,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,118.20 : 430,724.22 = 168,878.24 : x
  2. Step 2: Convert to fraction form
    312,118.20/430,724.22 = 168,878.24/x
  3. Step 3: Cross multiply
    312,118.20x = 430,724.22 × 168,878.24
  4. Step 4: Simplify right side
    312,118.20x = 72,739,946,045.35
  5. Step 5: Solve for x
    x = 72,739,946,045.35/312,118.20
  6. Step 6: Final answer
    x = 233,052.56

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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.