Home / 284,813.58-393,045.30-157,497.78

Finding the Fourth Proportional to 284,813.58, 393,045.30 and 157,497.78

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Solution

The fourth proportional to 284,813.58, 393,045.30 and 157,497.78 is: 217,348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,813.58 : 393,045.30 = 157,497.78 : x
  2. Step 2: Convert to fraction form
    284,813.58/393,045.30 = 157,497.78/x
  3. Step 3: Cross multiply
    284,813.58x = 393,045.30 × 157,497.78
  4. Step 4: Simplify right side
    284,813.58x = 61,903,762,189.43
  5. Step 5: Solve for x
    x = 61,903,762,189.43/284,813.58
  6. Step 6: Final answer
    x = 217,348.35

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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.