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Finding the Fourth Proportional to 308,377.51, 462,741.23 and 121,520.23

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Solution

The fourth proportional to 308,377.51, 462,741.23 and 121,520.23 is: 182,349.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,377.51 : 462,741.23 = 121,520.23 : x
  2. Step 2: Convert to fraction form
    308,377.51/462,741.23 = 121,520.23/x
  3. Step 3: Cross multiply
    308,377.51x = 462,741.23 × 121,520.23
  4. Step 4: Simplify right side
    308,377.51x = 56,232,420,700.08
  5. Step 5: Solve for x
    x = 56,232,420,700.08/308,377.51
  6. Step 6: Final answer
    x = 182,349.29

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1.5x scale

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.