Home / 272,365.35-408,548.03-72,686.45

Finding the Fourth Proportional to 272,365.35, 408,548.03 and 72,686.45

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Solution

The fourth proportional to 272,365.35, 408,548.03 and 72,686.45 is: 109,029.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,365.35 : 408,548.03 = 72,686.45 : x
  2. Step 2: Convert to fraction form
    272,365.35/408,548.03 = 72,686.45/x
  3. Step 3: Cross multiply
    272,365.35x = 408,548.03 × 72,686.45
  4. Step 4: Simplify right side
    272,365.35x = 29,695,903,549.02
  5. Step 5: Solve for x
    x = 29,695,903,549.02/272,365.35
  6. Step 6: Final answer
    x = 109,029.67

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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.