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Finding the Fourth Proportional to 284,557.80, 426,858.30 and 84,862.56

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Solution

The fourth proportional to 284,557.80, 426,858.30 and 84,862.56 is: 127,300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,557.80 : 426,858.30 = 84,862.56 : x
  2. Step 2: Convert to fraction form
    284,557.80/426,858.30 = 84,862.56/x
  3. Step 3: Cross multiply
    284,557.80x = 426,858.30 × 84,862.56
  4. Step 4: Simplify right side
    284,557.80x = 36,224,288,095.25
  5. Step 5: Solve for x
    x = 36,224,288,095.25/284,557.80
  6. Step 6: Final answer
    x = 127,300.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.