Home / 284,885.12-393,125.52-155,797.92

Finding the Fourth Proportional to 284,885.12, 393,125.52 and 155,797.92

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Solution

The fourth proportional to 284,885.12, 393,125.52 and 155,797.92 is: 214,992.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,885.12 : 393,125.52 = 155,797.92 : x
  2. Step 2: Convert to fraction form
    284,885.12/393,125.52 = 155,797.92/x
  3. Step 3: Cross multiply
    284,885.12x = 393,125.52 × 155,797.92
  4. Step 4: Simplify right side
    284,885.12x = 61,248,138,314.92
  5. Step 5: Solve for x
    x = 61,248,138,314.92/284,885.12
  6. Step 6: Final answer
    x = 214,992.41

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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.