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Finding the Fourth Proportional to 281,495.22, 388,366.89 and 160,549.53

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Solution

The fourth proportional to 281,495.22, 388,366.89 and 160,549.53 is: 221,503.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,495.22 : 388,366.89 = 160,549.53 : x
  2. Step 2: Convert to fraction form
    281,495.22/388,366.89 = 160,549.53/x
  3. Step 3: Cross multiply
    281,495.22x = 388,366.89 × 160,549.53
  4. Step 4: Simplify right side
    281,495.22x = 62,352,121,657.06
  5. Step 5: Solve for x
    x = 62,352,121,657.06/281,495.22
  6. Step 6: Final answer
    x = 221,503.31

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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.