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Finding the Fourth Proportional to 188,652.21, 282,909.84 and 103,326.45

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Solution

The fourth proportional to 188,652.21, 282,909.84 and 103,326.45 is: 154,952.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,652.21 : 282,909.84 = 103,326.45 : x
  2. Step 2: Convert to fraction form
    188,652.21/282,909.84 = 103,326.45/x
  3. Step 3: Cross multiply
    188,652.21x = 282,909.84 × 103,326.45
  4. Step 4: Simplify right side
    188,652.21x = 29,232,069,437.27
  5. Step 5: Solve for x
    x = 29,232,069,437.27/188,652.21
  6. Step 6: Final answer
    x = 154,952.17

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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.