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Finding the Fourth Proportional to 281,369.22, 388,326.51 and 160,482.80

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Solution

The fourth proportional to 281,369.22, 388,326.51 and 160,482.80 is: 221,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,369.22 : 388,326.51 = 160,482.80 : x
  2. Step 2: Convert to fraction form
    281,369.22/388,326.51 = 160,482.80/x
  3. Step 3: Cross multiply
    281,369.22x = 388,326.51 × 160,482.80
  4. Step 4: Simplify right side
    281,369.22x = 62,319,722,894.98
  5. Step 5: Solve for x
    x = 62,319,722,894.98/281,369.22
  6. Step 6: Final answer
    x = 221,487.35

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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.