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Finding the Fourth Proportional to 507,620.16, 700,516.89 and 281,265.66

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Solution

The fourth proportional to 507,620.16, 700,516.89 and 281,265.66 is: 388,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,620.16 : 700,516.89 = 281,265.66 : x
  2. Step 2: Convert to fraction form
    507,620.16/700,516.89 = 281,265.66/x
  3. Step 3: Cross multiply
    507,620.16x = 700,516.89 × 281,265.66
  4. Step 4: Simplify right side
    507,620.16x = 197,031,345,407.00
  5. Step 5: Solve for x
    x = 197,031,345,407.00/507,620.16
  6. Step 6: Final answer
    x = 388,147.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.