Home / 278,783.47-384,723.03-151,459.03

Finding the Fourth Proportional to 278,783.47, 384,723.03 and 151,459.03

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Solution

The fourth proportional to 278,783.47, 384,723.03 and 151,459.03 is: 209,014.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,783.47 : 384,723.03 = 151,459.03 : x
  2. Step 2: Convert to fraction form
    278,783.47/384,723.03 = 151,459.03/x
  3. Step 3: Cross multiply
    278,783.47x = 384,723.03 × 151,459.03
  4. Step 4: Simplify right side
    278,783.47x = 58,269,776,942.46
  5. Step 5: Solve for x
    x = 58,269,776,942.46/278,783.47
  6. Step 6: Final answer
    x = 209,014.46

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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.