Home / 278,839.67-384,798.02-151,515.27

Finding the Fourth Proportional to 278,839.67, 384,798.02 and 151,515.27

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Solution

The fourth proportional to 278,839.67, 384,798.02 and 151,515.27 is: 209,090.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,839.67 : 384,798.02 = 151,515.27 : x
  2. Step 2: Convert to fraction form
    278,839.67/384,798.02 = 151,515.27/x
  3. Step 3: Cross multiply
    278,839.67x = 384,798.02 × 151,515.27
  4. Step 4: Simplify right side
    278,839.67x = 58,302,775,138.19
  5. Step 5: Solve for x
    x = 58,302,775,138.19/278,839.67
  6. Step 6: Final answer
    x = 209,090.68

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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.