Home / 380,066.20-570,117.66-99,583.72

Finding the Fourth Proportional to 380,066.20, 570,117.66 and 99,583.72

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Solution

The fourth proportional to 380,066.20, 570,117.66 and 99,583.72 is: 149,380.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,066.20 : 570,117.66 = 99,583.72 : x
  2. Step 2: Convert to fraction form
    380,066.20/570,117.66 = 99,583.72/x
  3. Step 3: Cross multiply
    380,066.20x = 570,117.66 × 99,583.72
  4. Step 4: Simplify right side
    380,066.20x = 56,774,437,420.50
  5. Step 5: Solve for x
    x = 56,774,437,420.50/380,066.20
  6. Step 6: Final answer
    x = 149,380.39

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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.