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Finding the Fourth Proportional to 287,797.54, 397,172.90 and 160,473.13

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Solution

The fourth proportional to 287,797.54, 397,172.90 and 160,473.13 is: 221,459.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,797.54 : 397,172.90 = 160,473.13 : x
  2. Step 2: Convert to fraction form
    287,797.54/397,172.90 = 160,473.13/x
  3. Step 3: Cross multiply
    287,797.54x = 397,172.90 × 160,473.13
  4. Step 4: Simplify right side
    287,797.54x = 63,735,575,625.95
  5. Step 5: Solve for x
    x = 63,735,575,625.95/287,797.54
  6. Step 6: Final answer
    x = 221,459.77

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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.