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Finding the Fourth Proportional to 346,676.94, 478,561.52 and 210,754.31

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Solution

The fourth proportional to 346,676.94, 478,561.52 and 210,754.31 is: 290,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,676.94 : 478,561.52 = 210,754.31 : x
  2. Step 2: Convert to fraction form
    346,676.94/478,561.52 = 210,754.31/x
  3. Step 3: Cross multiply
    346,676.94x = 478,561.52 × 210,754.31
  4. Step 4: Simplify right side
    346,676.94x = 100,858,901,074.23
  5. Step 5: Solve for x
    x = 100,858,901,074.23/346,676.94
  6. Step 6: Final answer
    x = 290,930.52

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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.