Home / 285,210.92-393,594.18-157,888.64

Finding the Fourth Proportional to 285,210.92, 393,594.18 and 157,888.64

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Solution

The fourth proportional to 285,210.92, 393,594.18 and 157,888.64 is: 217,888.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,210.92 : 393,594.18 = 157,888.64 : x
  2. Step 2: Convert to fraction form
    285,210.92/393,594.18 = 157,888.64/x
  3. Step 3: Cross multiply
    285,210.92x = 393,594.18 × 157,888.64
  4. Step 4: Simplify right side
    285,210.92x = 62,144,049,792.12
  5. Step 5: Solve for x
    x = 62,144,049,792.12/285,210.92
  6. Step 6: Final answer
    x = 217,888.05

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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.