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Finding the Fourth Proportional to 346,574.20, 519,861.30 and 121,969.30

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Solution

The fourth proportional to 346,574.20, 519,861.30 and 121,969.30 is: 182,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,574.20 : 519,861.30 = 121,969.30 : x
  2. Step 2: Convert to fraction form
    346,574.20/519,861.30 = 121,969.30/x
  3. Step 3: Cross multiply
    346,574.20x = 519,861.30 × 121,969.30
  4. Step 4: Simplify right side
    346,574.20x = 63,407,118,858.09
  5. Step 5: Solve for x
    x = 63,407,118,858.09/346,574.20
  6. Step 6: Final answer
    x = 182,953.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.