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Finding the Fourth Proportional to 507,389.50, 700,197.51 and 281,049.58

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Solution

The fourth proportional to 507,389.50, 700,197.51 and 281,049.58 is: 387,848.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,389.50 : 700,197.51 = 281,049.58 : x
  2. Step 2: Convert to fraction form
    507,389.50/700,197.51 = 281,049.58/x
  3. Step 3: Cross multiply
    507,389.50x = 700,197.51 × 281,049.58
  4. Step 4: Simplify right side
    507,389.50x = 196,790,216,102.55
  5. Step 5: Solve for x
    x = 196,790,216,102.55/507,389.50
  6. Step 6: Final answer
    x = 387,848.42

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1.5x scale

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.