Home / 352,730.55-528,942.74-128,016.30

Finding the Fourth Proportional to 352,730.55, 528,942.74 and 128,016.30

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Solution

The fourth proportional to 352,730.55, 528,942.74 and 128,016.30 is: 191,968.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,730.55 : 528,942.74 = 128,016.30 : x
  2. Step 2: Convert to fraction form
    352,730.55/528,942.74 = 128,016.30/x
  3. Step 3: Cross multiply
    352,730.55x = 528,942.74 × 128,016.30
  4. Step 4: Simplify right side
    352,730.55x = 67,713,291,846.58
  5. Step 5: Solve for x
    x = 67,713,291,846.58/352,730.55
  6. Step 6: Final answer
    x = 191,968.89

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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.