Home / 278,562.19-384,415.81-151,237.80

Finding the Fourth Proportional to 278,562.19, 384,415.81 and 151,237.80

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Solution

The fourth proportional to 278,562.19, 384,415.81 and 151,237.80 is: 208,708.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,562.19 : 384,415.81 = 151,237.80 : x
  2. Step 2: Convert to fraction form
    278,562.19/384,415.81 = 151,237.80/x
  3. Step 3: Cross multiply
    278,562.19x = 384,415.81 × 151,237.80
  4. Step 4: Simplify right side
    278,562.19x = 58,138,201,389.62
  5. Step 5: Solve for x
    x = 58,138,201,389.62/278,562.19
  6. Step 6: Final answer
    x = 208,708.16

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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.