Home / 285,110.50-393,446.40-156,048.94

Finding the Fourth Proportional to 285,110.50, 393,446.40 and 156,048.94

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Solution

The fourth proportional to 285,110.50, 393,446.40 and 156,048.94 is: 215,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,110.50 : 393,446.40 = 156,048.94 : x
  2. Step 2: Convert to fraction form
    285,110.50/393,446.40 = 156,048.94/x
  3. Step 3: Cross multiply
    285,110.50x = 393,446.40 × 156,048.94
  4. Step 4: Simplify right side
    285,110.50x = 61,396,893,666.82
  5. Step 5: Solve for x
    x = 61,396,893,666.82/285,110.50
  6. Step 6: Final answer
    x = 215,344.20

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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.