Home / 285,213.92-393,598.32-157,891.76

Finding the Fourth Proportional to 285,213.92, 393,598.32 and 157,891.76

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Solution

The fourth proportional to 285,213.92, 393,598.32 and 157,891.76 is: 217,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,213.92 : 393,598.32 = 157,891.76 : x
  2. Step 2: Convert to fraction form
    285,213.92/393,598.32 = 157,891.76/x
  3. Step 3: Cross multiply
    285,213.92x = 393,598.32 × 157,891.76
  4. Step 4: Simplify right side
    285,213.92x = 62,145,931,477.84
  5. Step 5: Solve for x
    x = 62,145,931,477.84/285,213.92
  6. Step 6: Final answer
    x = 217,892.35

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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.