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Finding the Fourth Proportional to 188,430.58, 260,021.97 and 107,858.74

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Solution

The fourth proportional to 188,430.58, 260,021.97 and 107,858.74 is: 148,838.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,430.58 : 260,021.97 = 107,858.74 : x
  2. Step 2: Convert to fraction form
    188,430.58/260,021.97 = 107,858.74/x
  3. Step 3: Cross multiply
    188,430.58x = 260,021.97 × 107,858.74
  4. Step 4: Simplify right side
    188,430.58x = 28,045,642,056.52
  5. Step 5: Solve for x
    x = 28,045,642,056.52/188,430.58
  6. Step 6: Final answer
    x = 148,838.06

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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.