Home / 260,430.03-390,538.13-82,889.37

Finding the Fourth Proportional to 260,430.03, 390,538.13 and 82,889.37

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Solution

The fourth proportional to 260,430.03, 390,538.13 and 82,889.37 is: 124,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,430.03 : 390,538.13 = 82,889.37 : x
  2. Step 2: Convert to fraction form
    260,430.03/390,538.13 = 82,889.37/x
  3. Step 3: Cross multiply
    260,430.03x = 390,538.13 × 82,889.37
  4. Step 4: Simplify right side
    260,430.03x = 32,371,459,142.23
  5. Step 5: Solve for x
    x = 32,371,459,142.23/260,430.03
  6. Step 6: Final answer
    x = 124,300.02

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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.