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Finding the Fourth Proportional to 260,014.60, 358,986.90 and 212,382.28

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Solution

The fourth proportional to 260,014.60, 358,986.90 and 212,382.28 is: 293,223.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,014.60 : 358,986.90 = 212,382.28 : x
  2. Step 2: Convert to fraction form
    260,014.60/358,986.90 = 212,382.28/x
  3. Step 3: Cross multiply
    260,014.60x = 358,986.90 × 212,382.28
  4. Step 4: Simplify right side
    260,014.60x = 76,242,456,312.13
  5. Step 5: Solve for x
    x = 76,242,456,312.13/260,014.60
  6. Step 6: Final answer
    x = 293,223.75

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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.