Home / 259,955.08-390,056.60-141,623.80

Finding the Fourth Proportional to 259,955.08, 390,056.60 and 141,623.80

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Solution

The fourth proportional to 259,955.08, 390,056.60 and 141,623.80 is: 212,503.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,955.08 : 390,056.60 = 141,623.80 : x
  2. Step 2: Convert to fraction form
    259,955.08/390,056.60 = 141,623.80/x
  3. Step 3: Cross multiply
    259,955.08x = 390,056.60 × 141,623.80
  4. Step 4: Simplify right side
    259,955.08x = 55,241,297,907.08
  5. Step 5: Solve for x
    x = 55,241,297,907.08/259,955.08
  6. Step 6: Final answer
    x = 212,503.24

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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.