Home / 380,034.20-570,051.30-99,579.80

Finding the Fourth Proportional to 380,034.20, 570,051.30 and 99,579.80

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Solution

The fourth proportional to 380,034.20, 570,051.30 and 99,579.80 is: 149,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,034.20 : 570,051.30 = 99,579.80 : x
  2. Step 2: Convert to fraction form
    380,034.20/570,051.30 = 99,579.80/x
  3. Step 3: Cross multiply
    380,034.20x = 570,051.30 × 99,579.80
  4. Step 4: Simplify right side
    380,034.20x = 56,765,594,443.74
  5. Step 5: Solve for x
    x = 56,765,594,443.74/380,034.20
  6. Step 6: Final answer
    x = 149,369.70

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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.