Home / 260,511.44-390,159.48-190,216.40

Finding the Fourth Proportional to 260,511.44, 390,159.48 and 190,216.40

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Solution

The fourth proportional to 260,511.44, 390,159.48 and 190,216.40 is: 284,880.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,511.44 : 390,159.48 = 190,216.40 : x
  2. Step 2: Convert to fraction form
    260,511.44/390,159.48 = 190,216.40/x
  3. Step 3: Cross multiply
    260,511.44x = 390,159.48 × 190,216.40
  4. Step 4: Simplify right side
    260,511.44x = 74,214,731,711.47
  5. Step 5: Solve for x
    x = 74,214,731,711.47/260,511.44
  6. Step 6: Final answer
    x = 284,880.89

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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.