Home / 289,501.35-399,511.56-162,177.84

Finding the Fourth Proportional to 289,501.35, 399,511.56 and 162,177.84

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Solution

The fourth proportional to 289,501.35, 399,511.56 and 162,177.84 is: 223,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,501.35 : 399,511.56 = 162,177.84 : x
  2. Step 2: Convert to fraction form
    289,501.35/399,511.56 = 162,177.84/x
  3. Step 3: Cross multiply
    289,501.35x = 399,511.56 × 162,177.84
  4. Step 4: Simplify right side
    289,501.35x = 64,791,921,855.83
  5. Step 5: Solve for x
    x = 64,791,921,855.83/289,501.35
  6. Step 6: Final answer
    x = 223,805.25

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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.