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Finding the Fourth Proportional to 355,778.72, 533,668.08 and 168,688.16

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Solution

The fourth proportional to 355,778.72, 533,668.08 and 168,688.16 is: 253,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,778.72 : 533,668.08 = 168,688.16 : x
  2. Step 2: Convert to fraction form
    355,778.72/533,668.08 = 168,688.16/x
  3. Step 3: Cross multiply
    355,778.72x = 533,668.08 × 168,688.16
  4. Step 4: Simplify right side
    355,778.72x = 90,023,486,465.93
  5. Step 5: Solve for x
    x = 90,023,486,465.93/355,778.72
  6. Step 6: Final answer
    x = 253,032.24

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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.