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Finding the Fourth Proportional to 284,389.70, 392,455.38 and 157,062.56

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Solution

The fourth proportional to 284,389.70, 392,455.38 and 157,062.56 is: 216,745.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,389.70 : 392,455.38 = 157,062.56 : x
  2. Step 2: Convert to fraction form
    284,389.70/392,455.38 = 157,062.56/x
  3. Step 3: Cross multiply
    284,389.70x = 392,455.38 × 157,062.56
  4. Step 4: Simplify right side
    284,389.70x = 61,640,048,238.70
  5. Step 5: Solve for x
    x = 61,640,048,238.70/284,389.70
  6. Step 6: Final answer
    x = 216,745.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.