Home / 260,322.58-390,385.32-141,929.47

Finding the Fourth Proportional to 260,322.58, 390,385.32 and 141,929.47

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Solution

The fourth proportional to 260,322.58, 390,385.32 and 141,929.47 is: 212,840.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,322.58 : 390,385.32 = 141,929.47 : x
  2. Step 2: Convert to fraction form
    260,322.58/390,385.32 = 141,929.47/x
  3. Step 3: Cross multiply
    260,322.58x = 390,385.32 × 141,929.47
  4. Step 4: Simplify right side
    260,322.58x = 55,407,181,563.38
  5. Step 5: Solve for x
    x = 55,407,181,563.38/260,322.58
  6. Step 6: Final answer
    x = 212,840.47

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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.