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Finding the Fourth Proportional to 188,703, 260,412.57 and 103,818.24

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Solution

The fourth proportional to 188,703, 260,412.57 and 103,818.24 is: 143,270.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,703 : 260,412.57 = 103,818.24 : x
  2. Step 2: Convert to fraction form
    188,703/260,412.57 = 103,818.24/x
  3. Step 3: Cross multiply
    188,703x = 260,412.57 × 103,818.24
  4. Step 4: Simplify right side
    188,703x = 27,035,574,691.28
  5. Step 5: Solve for x
    x = 27,035,574,691.28/188,703
  6. Step 6: Final answer
    x = 143,270.51

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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.