Home / 211,905.56-292,688.70-158,428.28

Finding the Fourth Proportional to 211,905.56, 292,688.70 and 158,428.28

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Solution

The fourth proportional to 211,905.56, 292,688.70 and 158,428.28 is: 218,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,905.56 : 292,688.70 = 158,428.28 : x
  2. Step 2: Convert to fraction form
    211,905.56/292,688.70 = 158,428.28/x
  3. Step 3: Cross multiply
    211,905.56x = 292,688.70 × 158,428.28
  4. Step 4: Simplify right side
    211,905.56x = 46,370,167,316.44
  5. Step 5: Solve for x
    x = 46,370,167,316.44/211,905.56
  6. Step 6: Final answer
    x = 218,824.68

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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.