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Finding the Fourth Proportional to 281,351.98, 388,302.69 and 160,465.55

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Solution

The fourth proportional to 281,351.98, 388,302.69 and 160,465.55 is: 221,463.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,351.98 : 388,302.69 = 160,465.55 : x
  2. Step 2: Convert to fraction form
    281,351.98/388,302.69 = 160,465.55/x
  3. Step 3: Cross multiply
    281,351.98x = 388,302.69 × 160,465.55
  4. Step 4: Simplify right side
    281,351.98x = 62,309,205,688.09
  5. Step 5: Solve for x
    x = 62,309,205,688.09/281,351.98
  6. Step 6: Final answer
    x = 221,463.54

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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.