Home / 284,928.83-393,184.49-155,842.98

Finding the Fourth Proportional to 284,928.83, 393,184.49 and 155,842.98

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Solution

The fourth proportional to 284,928.83, 393,184.49 and 155,842.98 is: 215,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,928.83 : 393,184.49 = 155,842.98 : x
  2. Step 2: Convert to fraction form
    284,928.83/393,184.49 = 155,842.98/x
  3. Step 3: Cross multiply
    284,928.83x = 393,184.49 × 155,842.98
  4. Step 4: Simplify right side
    284,928.83x = 61,275,042,611.38
  5. Step 5: Solve for x
    x = 61,275,042,611.38/284,928.83
  6. Step 6: Final answer
    x = 215,053.85

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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.