Home / 302,382.72-417,104.64-189,112.32

Finding the Fourth Proportional to 302,382.72, 417,104.64 and 189,112.32

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Solution

The fourth proportional to 302,382.72, 417,104.64 and 189,112.32 is: 260,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,382.72 : 417,104.64 = 189,112.32 : x
  2. Step 2: Convert to fraction form
    302,382.72/417,104.64 = 189,112.32/x
  3. Step 3: Cross multiply
    302,382.72x = 417,104.64 × 189,112.32
  4. Step 4: Simplify right side
    302,382.72x = 78,879,626,153.16
  5. Step 5: Solve for x
    x = 78,879,626,153.16/302,382.72
  6. Step 6: Final answer
    x = 260,860.23

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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.