Home / 285,184.98-393,585.21-213,439.50

Finding the Fourth Proportional to 285,184.98, 393,585.21 and 213,439.50

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Solution

The fourth proportional to 285,184.98, 393,585.21 and 213,439.50 is: 294,568.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,184.98 : 393,585.21 = 213,439.50 : x
  2. Step 2: Convert to fraction form
    285,184.98/393,585.21 = 213,439.50/x
  3. Step 3: Cross multiply
    285,184.98x = 393,585.21 × 213,439.50
  4. Step 4: Simplify right side
    285,184.98x = 84,006,630,429.80
  5. Step 5: Solve for x
    x = 84,006,630,429.80/285,184.98
  6. Step 6: Final answer
    x = 294,568.92

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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.