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Finding the Fourth Proportional to 660,122.58, 990,267.24 and 186,808.10

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Solution

The fourth proportional to 660,122.58, 990,267.24 and 186,808.10 is: 280,235.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,122.58 : 990,267.24 = 186,808.10 : x
  2. Step 2: Convert to fraction form
    660,122.58/990,267.24 = 186,808.10/x
  3. Step 3: Cross multiply
    660,122.58x = 990,267.24 × 186,808.10
  4. Step 4: Simplify right side
    660,122.58x = 184,989,936,645.31
  5. Step 5: Solve for x
    x = 184,989,936,645.31/660,122.58
  6. Step 6: Final answer
    x = 280,235.74

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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.