Home / 309,051.18-426,556.53-181,799.37

Finding the Fourth Proportional to 309,051.18, 426,556.53 and 181,799.37

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Solution

The fourth proportional to 309,051.18, 426,556.53 and 181,799.37 is: 250,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,051.18 : 426,556.53 = 181,799.37 : x
  2. Step 2: Convert to fraction form
    309,051.18/426,556.53 = 181,799.37/x
  3. Step 3: Cross multiply
    309,051.18x = 426,556.53 × 181,799.37
  4. Step 4: Simplify right side
    309,051.18x = 77,547,708,423.39
  5. Step 5: Solve for x
    x = 77,547,708,423.39/309,051.18
  6. Step 6: Final answer
    x = 250,921.90

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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.