Home / 285,309.04-393,732.66-156,253

Finding the Fourth Proportional to 285,309.04, 393,732.66 and 156,253

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Solution

The fourth proportional to 285,309.04, 393,732.66 and 156,253 is: 215,632.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,309.04 : 393,732.66 = 156,253 : x
  2. Step 2: Convert to fraction form
    285,309.04/393,732.66 = 156,253/x
  3. Step 3: Cross multiply
    285,309.04x = 393,732.66 × 156,253
  4. Step 4: Simplify right side
    285,309.04x = 61,521,909,322.98
  5. Step 5: Solve for x
    x = 61,521,909,322.98/285,309.04
  6. Step 6: Final answer
    x = 215,632.53

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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.