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Finding the Fourth Proportional to 346,279, 477,894.20 and 195,405.16

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Solution

The fourth proportional to 346,279, 477,894.20 and 195,405.16 is: 269,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,279 : 477,894.20 = 195,405.16 : x
  2. Step 2: Convert to fraction form
    346,279/477,894.20 = 195,405.16/x
  3. Step 3: Cross multiply
    346,279x = 477,894.20 × 195,405.16
  4. Step 4: Simplify right side
    346,279x = 93,382,992,614.07
  5. Step 5: Solve for x
    x = 93,382,992,614.07/346,279
  6. Step 6: Final answer
    x = 269,675.59

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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.