Home / 285,218.52-393,606.23-156,154.83

Finding the Fourth Proportional to 285,218.52, 393,606.23 and 156,154.83

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Solution

The fourth proportional to 285,218.52, 393,606.23 and 156,154.83 is: 215,496.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,218.52 : 393,606.23 = 156,154.83 : x
  2. Step 2: Convert to fraction form
    285,218.52/393,606.23 = 156,154.83/x
  3. Step 3: Cross multiply
    285,218.52x = 393,606.23 × 156,154.83
  4. Step 4: Simplify right side
    285,218.52x = 61,463,513,151.82
  5. Step 5: Solve for x
    x = 61,463,513,151.82/285,218.52
  6. Step 6: Final answer
    x = 215,496.22

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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.