Home / 314,889.60-434,531.70-178,905.72

Finding the Fourth Proportional to 314,889.60, 434,531.70 and 178,905.72

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Solution

The fourth proportional to 314,889.60, 434,531.70 and 178,905.72 is: 246,880.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,889.60 : 434,531.70 = 178,905.72 : x
  2. Step 2: Convert to fraction form
    314,889.60/434,531.70 = 178,905.72/x
  3. Step 3: Cross multiply
    314,889.60x = 434,531.70 × 178,905.72
  4. Step 4: Simplify right side
    314,889.60x = 77,740,206,651.32
  5. Step 5: Solve for x
    x = 77,740,206,651.32/314,889.60
  6. Step 6: Final answer
    x = 246,880.83

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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.