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Finding the Fourth Proportional to 357,439.73, 493,143.51 and 228,453.71

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Solution

The fourth proportional to 357,439.73, 493,143.51 and 228,453.71 is: 315,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,439.73 : 493,143.51 = 228,453.71 : x
  2. Step 2: Convert to fraction form
    357,439.73/493,143.51 = 228,453.71/x
  3. Step 3: Cross multiply
    357,439.73x = 493,143.51 × 228,453.71
  4. Step 4: Simplify right side
    357,439.73x = 112,660,461,956.21
  5. Step 5: Solve for x
    x = 112,660,461,956.21/357,439.73
  6. Step 6: Final answer
    x = 315,187.30

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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.