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Finding the Fourth Proportional to 302,395.93, 417,132.79 and 189,021.85

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Solution

The fourth proportional to 302,395.93, 417,132.79 and 189,021.85 is: 260,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,395.93 : 417,132.79 = 189,021.85 : x
  2. Step 2: Convert to fraction form
    302,395.93/417,132.79 = 189,021.85/x
  3. Step 3: Cross multiply
    302,395.93x = 417,132.79 × 189,021.85
  4. Step 4: Simplify right side
    302,395.93x = 78,847,210,146.07
  5. Step 5: Solve for x
    x = 78,847,210,146.07/302,395.93
  6. Step 6: Final answer
    x = 260,741.64

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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.