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Finding the Fourth Proportional to 416,938.31, 575,436.57 and 263,990.72

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Solution

The fourth proportional to 416,938.31, 575,436.57 and 263,990.72 is: 364,346.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,938.31 : 575,436.57 = 263,990.72 : x
  2. Step 2: Convert to fraction form
    416,938.31/575,436.57 = 263,990.72/x
  3. Step 3: Cross multiply
    416,938.31x = 575,436.57 × 263,990.72
  4. Step 4: Simplify right side
    416,938.31x = 151,909,914,428.63
  5. Step 5: Solve for x
    x = 151,909,914,428.63/416,938.31
  6. Step 6: Final answer
    x = 364,346.26

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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.