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Finding the Fourth Proportional to 145,604.76, 218,406.94 and 45,773.68

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Solution

The fourth proportional to 145,604.76, 218,406.94 and 45,773.68 is: 68,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,604.76 : 218,406.94 = 45,773.68 : x
  2. Step 2: Convert to fraction form
    145,604.76/218,406.94 = 45,773.68/x
  3. Step 3: Cross multiply
    145,604.76x = 218,406.94 × 45,773.68
  4. Step 4: Simplify right side
    145,604.76x = 9,997,289,381.34
  5. Step 5: Solve for x
    x = 9,997,289,381.34/145,604.76
  6. Step 6: Final answer
    x = 68,660.46

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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.