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Finding the Fourth Proportional to 302,249.68, 417,216.84 and 259,637.20

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Solution

The fourth proportional to 302,249.68, 417,216.84 and 259,637.20 is: 358,395.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,249.68 : 417,216.84 = 259,637.20 : x
  2. Step 2: Convert to fraction form
    302,249.68/417,216.84 = 259,637.20/x
  3. Step 3: Cross multiply
    302,249.68x = 417,216.84 × 259,637.20
  4. Step 4: Simplify right side
    302,249.68x = 108,325,012,130.45
  5. Step 5: Solve for x
    x = 108,325,012,130.45/302,249.68
  6. Step 6: Final answer
    x = 358,395.79

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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.