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Finding the Fourth Proportional to 287,393.34, 396,602.54 and 166,604.56

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Solution

The fourth proportional to 287,393.34, 396,602.54 and 166,604.56 is: 229,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,393.34 : 396,602.54 = 166,604.56 : x
  2. Step 2: Convert to fraction form
    287,393.34/396,602.54 = 166,604.56/x
  3. Step 3: Cross multiply
    287,393.34x = 396,602.54 × 166,604.56
  4. Step 4: Simplify right side
    287,393.34x = 66,075,791,671.58
  5. Step 5: Solve for x
    x = 66,075,791,671.58/287,393.34
  6. Step 6: Final answer
    x = 229,914.14

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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.