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Finding the Fourth Proportional to 218,955.54, 302,158.51 and 118,353.54

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Solution

The fourth proportional to 218,955.54, 302,158.51 and 118,353.54 is: 163,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,955.54 : 302,158.51 = 118,353.54 : x
  2. Step 2: Convert to fraction form
    218,955.54/302,158.51 = 118,353.54/x
  3. Step 3: Cross multiply
    218,955.54x = 302,158.51 × 118,353.54
  4. Step 4: Simplify right side
    218,955.54x = 35,761,529,299.63
  5. Step 5: Solve for x
    x = 35,761,529,299.63/218,955.54
  6. Step 6: Final answer
    x = 163,327.81

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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.