Home / 358,743.94-538,140.51-118,857.38

Finding the Fourth Proportional to 358,743.94, 538,140.51 and 118,857.38

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Solution

The fourth proportional to 358,743.94, 538,140.51 and 118,857.38 is: 178,294.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,743.94 : 538,140.51 = 118,857.38 : x
  2. Step 2: Convert to fraction form
    358,743.94/538,140.51 = 118,857.38/x
  3. Step 3: Cross multiply
    358,743.94x = 538,140.51 × 118,857.38
  4. Step 4: Simplify right side
    358,743.94x = 63,961,968,399.76
  5. Step 5: Solve for x
    x = 63,961,968,399.76/358,743.94
  6. Step 6: Final answer
    x = 178,294.21

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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.