Home / 283,923.59-391,813.76-163,072.68

Finding the Fourth Proportional to 283,923.59, 391,813.76 and 163,072.68

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Solution

The fourth proportional to 283,923.59, 391,813.76 and 163,072.68 is: 225,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,923.59 : 391,813.76 = 163,072.68 : x
  2. Step 2: Convert to fraction form
    283,923.59/391,813.76 = 163,072.68/x
  3. Step 3: Cross multiply
    283,923.59x = 391,813.76 × 163,072.68
  4. Step 4: Simplify right side
    283,923.59x = 63,894,119,088.71
  5. Step 5: Solve for x
    x = 63,894,119,088.71/283,923.59
  6. Step 6: Final answer
    x = 225,039.84

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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.