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Finding the Fourth Proportional to 234,875.32, 324,106.54 and 139,365.56

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Solution

The fourth proportional to 234,875.32, 324,106.54 and 139,365.56 is: 192,311.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,875.32 : 324,106.54 = 139,365.56 : x
  2. Step 2: Convert to fraction form
    234,875.32/324,106.54 = 139,365.56/x
  3. Step 3: Cross multiply
    234,875.32x = 324,106.54 × 139,365.56
  4. Step 4: Simplify right side
    234,875.32x = 45,169,289,446.76
  5. Step 5: Solve for x
    x = 45,169,289,446.76/234,875.32
  6. Step 6: Final answer
    x = 192,311.77

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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.