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Finding the Fourth Proportional to 145,406.70, 218,110.04 and 40,222.93

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Solution

The fourth proportional to 145,406.70, 218,110.04 and 40,222.93 is: 60,334.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,406.70 : 218,110.04 = 40,222.93 : x
  2. Step 2: Convert to fraction form
    145,406.70/218,110.04 = 40,222.93/x
  3. Step 3: Cross multiply
    145,406.70x = 218,110.04 × 40,222.93
  4. Step 4: Simplify right side
    145,406.70x = 8,773,024,871.22
  5. Step 5: Solve for x
    x = 8,773,024,871.22/145,406.70
  6. Step 6: Final answer
    x = 60,334.39

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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.