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Finding the Fourth Proportional to 260,412.69, 359,250.35 and 152,980.77

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Solution

The fourth proportional to 260,412.69, 359,250.35 and 152,980.77 is: 211,043.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,412.69 : 359,250.35 = 152,980.77 : x
  2. Step 2: Convert to fraction form
    260,412.69/359,250.35 = 152,980.77/x
  3. Step 3: Cross multiply
    260,412.69x = 359,250.35 × 152,980.77
  4. Step 4: Simplify right side
    260,412.69x = 54,958,394,400.87
  5. Step 5: Solve for x
    x = 54,958,394,400.87/260,412.69
  6. Step 6: Final answer
    x = 211,043.46

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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.