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Finding the Fourth Proportional to 352,005.10, 528,007.65 and 162,465.10

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Solution

The fourth proportional to 352,005.10, 528,007.65 and 162,465.10 is: 243,697.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,005.10 : 528,007.65 = 162,465.10 : x
  2. Step 2: Convert to fraction form
    352,005.10/528,007.65 = 162,465.10/x
  3. Step 3: Cross multiply
    352,005.10x = 528,007.65 × 162,465.10
  4. Step 4: Simplify right side
    352,005.10x = 85,782,815,658.02
  5. Step 5: Solve for x
    x = 85,782,815,658.02/352,005.10
  6. Step 6: Final answer
    x = 243,697.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.