Home / 284,812.10-393,039.65-160,623.21

Finding the Fourth Proportional to 284,812.10, 393,039.65 and 160,623.21

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Solution

The fourth proportional to 284,812.10, 393,039.65 and 160,623.21 is: 221,659.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,812.10 : 393,039.65 = 160,623.21 : x
  2. Step 2: Convert to fraction form
    284,812.10/393,039.65 = 160,623.21/x
  3. Step 3: Cross multiply
    284,812.10x = 393,039.65 × 160,623.21
  4. Step 4: Simplify right side
    284,812.10x = 63,131,290,641.83
  5. Step 5: Solve for x
    x = 63,131,290,641.83/284,812.10
  6. Step 6: Final answer
    x = 221,659.44

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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.