Home / 285,430.59-427,836.39-142,932.33

Finding the Fourth Proportional to 285,430.59, 427,836.39 and 142,932.33

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Solution

The fourth proportional to 285,430.59, 427,836.39 and 142,932.33 is: 214,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,430.59 : 427,836.39 = 142,932.33 : x
  2. Step 2: Convert to fraction form
    285,430.59/427,836.39 = 142,932.33/x
  3. Step 3: Cross multiply
    285,430.59x = 427,836.39 × 142,932.33
  4. Step 4: Simplify right side
    285,430.59x = 61,151,652,081.49
  5. Step 5: Solve for x
    x = 61,151,652,081.49/285,430.59
  6. Step 6: Final answer
    x = 214,243.51

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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.