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Finding the Fourth Proportional to 281,777.42, 388,868.76 and 167,123.94

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Solution

The fourth proportional to 281,777.42, 388,868.76 and 167,123.94 is: 230,640.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,777.42 : 388,868.76 = 167,123.94 : x
  2. Step 2: Convert to fraction form
    281,777.42/388,868.76 = 167,123.94/x
  3. Step 3: Cross multiply
    281,777.42x = 388,868.76 × 167,123.94
  4. Step 4: Simplify right side
    281,777.42x = 64,989,279,314.11
  5. Step 5: Solve for x
    x = 64,989,279,314.11/281,777.42
  6. Step 6: Final answer
    x = 230,640.48

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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.