Home / 266,942.79-368,345.48-153,743.67

Finding the Fourth Proportional to 266,942.79, 368,345.48 and 153,743.67

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Solution

The fourth proportional to 266,942.79, 368,345.48 and 153,743.67 is: 212,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,942.79 : 368,345.48 = 153,743.67 : x
  2. Step 2: Convert to fraction form
    266,942.79/368,345.48 = 153,743.67/x
  3. Step 3: Cross multiply
    266,942.79x = 368,345.48 × 153,743.67
  4. Step 4: Simplify right side
    266,942.79x = 56,630,785,154.39
  5. Step 5: Solve for x
    x = 56,630,785,154.39/266,942.79
  6. Step 6: Final answer
    x = 212,145.78

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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.