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Finding the Fourth Proportional to 358,804.40, 538,163.40 and 148,420.40

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Solution

The fourth proportional to 358,804.40, 538,163.40 and 148,420.40 is: 222,612.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,804.40 : 538,163.40 = 148,420.40 : x
  2. Step 2: Convert to fraction form
    358,804.40/538,163.40 = 148,420.40/x
  3. Step 3: Cross multiply
    358,804.40x = 538,163.40 × 148,420.40
  4. Step 4: Simplify right side
    358,804.40x = 79,874,427,093.36
  5. Step 5: Solve for x
    x = 79,874,427,093.36/358,804.40
  6. Step 6: Final answer
    x = 222,612.73

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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.