Home / 385,385.81-531,788.03-222,066.12

Finding the Fourth Proportional to 385,385.81, 531,788.03 and 222,066.12

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Solution

The fourth proportional to 385,385.81, 531,788.03 and 222,066.12 is: 306,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,385.81 : 531,788.03 = 222,066.12 : x
  2. Step 2: Convert to fraction form
    385,385.81/531,788.03 = 222,066.12/x
  3. Step 3: Cross multiply
    385,385.81x = 531,788.03 × 222,066.12
  4. Step 4: Simplify right side
    385,385.81x = 118,092,104,484.54
  5. Step 5: Solve for x
    x = 118,092,104,484.54/385,385.81
  6. Step 6: Final answer
    x = 306,425.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.