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Finding the Fourth Proportional to 354,352.32, 531,437.76 and 104,976

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Solution

The fourth proportional to 354,352.32, 531,437.76 and 104,976 is: 157,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,352.32 : 531,437.76 = 104,976 : x
  2. Step 2: Convert to fraction form
    354,352.32/531,437.76 = 104,976/x
  3. Step 3: Cross multiply
    354,352.32x = 531,437.76 × 104,976
  4. Step 4: Simplify right side
    354,352.32x = 55,788,210,293.76
  5. Step 5: Solve for x
    x = 55,788,210,293.76/354,352.32
  6. Step 6: Final answer
    x = 157,437.12

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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.