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Finding the Fourth Proportional to 358,809.40, 538,214.10 and 301,072.60

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Solution

The fourth proportional to 358,809.40, 538,214.10 and 301,072.60 is: 451,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,809.40 : 538,214.10 = 301,072.60 : x
  2. Step 2: Convert to fraction form
    358,809.40/538,214.10 = 301,072.60/x
  3. Step 3: Cross multiply
    358,809.40x = 538,214.10 × 301,072.60
  4. Step 4: Simplify right side
    358,809.40x = 162,041,518,443.66
  5. Step 5: Solve for x
    x = 162,041,518,443.66/358,809.40
  6. Step 6: Final answer
    x = 451,608.90

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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.