Home / 285,142.17-393,090.57-194,381.67

Finding the Fourth Proportional to 285,142.17, 393,090.57 and 194,381.67

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Solution

The fourth proportional to 285,142.17, 393,090.57 and 194,381.67 is: 267,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,142.17 : 393,090.57 = 194,381.67 : x
  2. Step 2: Convert to fraction form
    285,142.17/393,090.57 = 194,381.67/x
  3. Step 3: Cross multiply
    285,142.17x = 393,090.57 × 194,381.67
  4. Step 4: Simplify right side
    285,142.17x = 76,409,602,931.94
  5. Step 5: Solve for x
    x = 76,409,602,931.94/285,142.17
  6. Step 6: Final answer
    x = 267,970.19

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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.