Home / 280,828.30-421,242.45-174,540.10

Finding the Fourth Proportional to 280,828.30, 421,242.45 and 174,540.10

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Solution

The fourth proportional to 280,828.30, 421,242.45 and 174,540.10 is: 261,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,828.30 : 421,242.45 = 174,540.10 : x
  2. Step 2: Convert to fraction form
    280,828.30/421,242.45 = 174,540.10/x
  3. Step 3: Cross multiply
    280,828.30x = 421,242.45 × 174,540.10
  4. Step 4: Simplify right side
    280,828.30x = 73,523,699,347.25
  5. Step 5: Solve for x
    x = 73,523,699,347.25/280,828.30
  6. Step 6: Final answer
    x = 261,810.15

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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.