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Finding the Fourth Proportional to 145,536.37, 218,289.22 and 38,931.10

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Solution

The fourth proportional to 145,536.37, 218,289.22 and 38,931.10 is: 58,392.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536.37 : 218,289.22 = 38,931.10 : x
  2. Step 2: Convert to fraction form
    145,536.37/218,289.22 = 38,931.10/x
  3. Step 3: Cross multiply
    145,536.37x = 218,289.22 × 38,931.10
  4. Step 4: Simplify right side
    145,536.37x = 8,498,238,809.69
  5. Step 5: Solve for x
    x = 8,498,238,809.69/145,536.37
  6. Step 6: Final answer
    x = 58,392.54

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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.