Home / 280,941.25-421,412.28-114,729.25

Finding the Fourth Proportional to 280,941.25, 421,412.28 and 114,729.25

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Solution

The fourth proportional to 280,941.25, 421,412.28 and 114,729.25 is: 172,094.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,941.25 : 421,412.28 = 114,729.25 : x
  2. Step 2: Convert to fraction form
    280,941.25/421,412.28 = 114,729.25/x
  3. Step 3: Cross multiply
    280,941.25x = 421,412.28 × 114,729.25
  4. Step 4: Simplify right side
    280,941.25x = 48,348,314,825.19
  5. Step 5: Solve for x
    x = 48,348,314,825.19/280,941.25
  6. Step 6: Final answer
    x = 172,094.04

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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.