Home / 260,308.48-390,574.64-82,829.92

Finding the Fourth Proportional to 260,308.48, 390,574.64 and 82,829.92

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Solution

The fourth proportional to 260,308.48, 390,574.64 and 82,829.92 is: 124,280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,308.48 : 390,574.64 = 82,829.92 : x
  2. Step 2: Convert to fraction form
    260,308.48/390,574.64 = 82,829.92/x
  3. Step 3: Cross multiply
    260,308.48x = 390,574.64 × 82,829.92
  4. Step 4: Simplify right side
    260,308.48x = 32,351,266,185.23
  5. Step 5: Solve for x
    x = 32,351,266,185.23/260,308.48
  6. Step 6: Final answer
    x = 124,280.49

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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.