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Finding the Fourth Proportional to 284,438.44, 392,525.22 and 157,119.40

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Solution

The fourth proportional to 284,438.44, 392,525.22 and 157,119.40 is: 216,824.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,438.44 : 392,525.22 = 157,119.40 : x
  2. Step 2: Convert to fraction form
    284,438.44/392,525.22 = 157,119.40/x
  3. Step 3: Cross multiply
    284,438.44x = 392,525.22 × 157,119.40
  4. Step 4: Simplify right side
    284,438.44x = 61,673,327,051.27
  5. Step 5: Solve for x
    x = 61,673,327,051.27/284,438.44
  6. Step 6: Final answer
    x = 216,824.87

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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.