Home / 358,725.17-538,163.66-118,825.50

Finding the Fourth Proportional to 358,725.17, 538,163.66 and 118,825.50

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Solution

The fourth proportional to 358,725.17, 538,163.66 and 118,825.50 is: 178,263.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,725.17 : 538,163.66 = 118,825.50 : x
  2. Step 2: Convert to fraction form
    358,725.17/538,163.66 = 118,825.50/x
  3. Step 3: Cross multiply
    358,725.17x = 538,163.66 × 118,825.50
  4. Step 4: Simplify right side
    358,725.17x = 63,947,565,269.34
  5. Step 5: Solve for x
    x = 63,947,565,269.34/358,725.17
  6. Step 6: Final answer
    x = 178,263.39

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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.