Home / 284,738.40-392,941.44-157,419.36

Finding the Fourth Proportional to 284,738.40, 392,941.44 and 157,419.36

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Solution

The fourth proportional to 284,738.40, 392,941.44 and 157,419.36 is: 217,240.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,738.40 : 392,941.44 = 157,419.36 : x
  2. Step 2: Convert to fraction form
    284,738.40/392,941.44 = 157,419.36/x
  3. Step 3: Cross multiply
    284,738.40x = 392,941.44 × 157,419.36
  4. Step 4: Simplify right side
    284,738.40x = 61,856,590,002.28
  5. Step 5: Solve for x
    x = 61,856,590,002.28/284,738.40
  6. Step 6: Final answer
    x = 217,240.07

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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.