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Finding the Fourth Proportional to 145,634.92, 218,281.92 and 55,618.68

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Solution

The fourth proportional to 145,634.92, 218,281.92 and 55,618.68 is: 83,362.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,634.92 : 218,281.92 = 55,618.68 : x
  2. Step 2: Convert to fraction form
    145,634.92/218,281.92 = 55,618.68/x
  3. Step 3: Cross multiply
    145,634.92x = 218,281.92 × 55,618.68
  4. Step 4: Simplify right side
    145,634.92x = 12,140,552,258.27
  5. Step 5: Solve for x
    x = 12,140,552,258.27/145,634.92
  6. Step 6: Final answer
    x = 83,362.92

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1.5x scale

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.