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Finding the Fourth Proportional to 188,762.64, 260,498.62 and 108,205.40

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Solution

The fourth proportional to 188,762.64, 260,498.62 and 108,205.40 is: 149,326.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,762.64 : 260,498.62 = 108,205.40 : x
  2. Step 2: Convert to fraction form
    188,762.64/260,498.62 = 108,205.40/x
  3. Step 3: Cross multiply
    188,762.64x = 260,498.62 × 108,205.40
  4. Step 4: Simplify right side
    188,762.64x = 28,187,357,376.55
  5. Step 5: Solve for x
    x = 28,187,357,376.55/188,762.64
  6. Step 6: Final answer
    x = 149,326.99

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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.