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Finding the Fourth Proportional to 270,658.40, 406,013.20 and 73,666.40

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Solution

The fourth proportional to 270,658.40, 406,013.20 and 73,666.40 is: 110,506.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,658.40 : 406,013.20 = 73,666.40 : x
  2. Step 2: Convert to fraction form
    270,658.40/406,013.20 = 73,666.40/x
  3. Step 3: Cross multiply
    270,658.40x = 406,013.20 × 73,666.40
  4. Step 4: Simplify right side
    270,658.40x = 29,909,530,796.48
  5. Step 5: Solve for x
    x = 29,909,530,796.48/270,658.40
  6. Step 6: Final answer
    x = 110,506.57

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1.5x scale

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.