Home / 285,012.32-393,202.68-164,088.72

Finding the Fourth Proportional to 285,012.32, 393,202.68 and 164,088.72

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Solution

The fourth proportional to 285,012.32, 393,202.68 and 164,088.72 is: 226,376.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,012.32 : 393,202.68 = 164,088.72 : x
  2. Step 2: Convert to fraction form
    285,012.32/393,202.68 = 164,088.72/x
  3. Step 3: Cross multiply
    285,012.32x = 393,202.68 × 164,088.72
  4. Step 4: Simplify right side
    285,012.32x = 64,520,124,461.77
  5. Step 5: Solve for x
    x = 64,520,124,461.77/285,012.32
  6. Step 6: Final answer
    x = 226,376.62

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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.