Home / 347,722.40-521,929.20-170,429.60

Finding the Fourth Proportional to 347,722.40, 521,929.20 and 170,429.60

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Solution

The fourth proportional to 347,722.40, 521,929.20 and 170,429.60 is: 255,813.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,722.40 : 521,929.20 = 170,429.60 : x
  2. Step 2: Convert to fraction form
    347,722.40/521,929.20 = 170,429.60/x
  3. Step 3: Cross multiply
    347,722.40x = 521,929.20 × 170,429.60
  4. Step 4: Simplify right side
    347,722.40x = 88,952,184,784.32
  5. Step 5: Solve for x
    x = 88,952,184,784.32/347,722.40
  6. Step 6: Final answer
    x = 255,813.79

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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.