Home / 385,386.31-531,788.72-222,066.62

Finding the Fourth Proportional to 385,386.31, 531,788.72 and 222,066.62

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Solution

The fourth proportional to 385,386.31, 531,788.72 and 222,066.62 is: 306,426.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,386.31 : 531,788.72 = 222,066.62 : x
  2. Step 2: Convert to fraction form
    385,386.31/531,788.72 = 222,066.62/x
  3. Step 3: Cross multiply
    385,386.31x = 531,788.72 × 222,066.62
  4. Step 4: Simplify right side
    385,386.31x = 118,092,523,604.53
  5. Step 5: Solve for x
    x = 118,092,523,604.53/385,386.31
  6. Step 6: Final answer
    x = 306,426.36

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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.