Home / 285,210.62-393,612.51-162,705.69

Finding the Fourth Proportional to 285,210.62, 393,612.51 and 162,705.69

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Solution

The fourth proportional to 285,210.62, 393,612.51 and 162,705.69 is: 224,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,210.62 : 393,612.51 = 162,705.69 : x
  2. Step 2: Convert to fraction form
    285,210.62/393,612.51 = 162,705.69/x
  3. Step 3: Cross multiply
    285,210.62x = 393,612.51 × 162,705.69
  4. Step 4: Simplify right side
    285,210.62x = 64,042,995,032.18
  5. Step 5: Solve for x
    x = 64,042,995,032.18/285,210.62
  6. Step 6: Final answer
    x = 224,546.32

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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.