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Finding the Fourth Proportional to 281,602.17, 388,613.30 and 160,742.07

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Solution

The fourth proportional to 281,602.17, 388,613.30 and 160,742.07 is: 221,825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,602.17 : 388,613.30 = 160,742.07 : x
  2. Step 2: Convert to fraction form
    281,602.17/388,613.30 = 160,742.07/x
  3. Step 3: Cross multiply
    281,602.17x = 388,613.30 × 160,742.07
  4. Step 4: Simplify right side
    281,602.17x = 62,466,505,467.82
  5. Step 5: Solve for x
    x = 62,466,505,467.82/281,602.17
  6. Step 6: Final answer
    x = 221,825.37

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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.