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Finding the Fourth Proportional to 358,572.36, 538,776.54 and 270,653.88

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Solution

The fourth proportional to 358,572.36, 538,776.54 and 270,653.88 is: 406,673.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,572.36 : 538,776.54 = 270,653.88 : x
  2. Step 2: Convert to fraction form
    358,572.36/538,776.54 = 270,653.88/x
  3. Step 3: Cross multiply
    358,572.36x = 538,776.54 × 270,653.88
  4. Step 4: Simplify right side
    358,572.36x = 145,821,961,003.98
  5. Step 5: Solve for x
    x = 145,821,961,003.98/358,572.36
  6. Step 6: Final answer
    x = 406,673.74

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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.