Home / 311,937.16-430,474.57-168,697.20

Finding the Fourth Proportional to 311,937.16, 430,474.57 and 168,697.20

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Solution

The fourth proportional to 311,937.16, 430,474.57 and 168,697.20 is: 232,802.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,937.16 : 430,474.57 = 168,697.20 : x
  2. Step 2: Convert to fraction form
    311,937.16/430,474.57 = 168,697.20/x
  3. Step 3: Cross multiply
    311,937.16x = 430,474.57 × 168,697.20
  4. Step 4: Simplify right side
    311,937.16x = 72,619,854,630.20
  5. Step 5: Solve for x
    x = 72,619,854,630.20/311,937.16
  6. Step 6: Final answer
    x = 232,802.83

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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.