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Finding the Fourth Proportional to 248,866.60, 343,434.18 and 141,428.20

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Solution

The fourth proportional to 248,866.60, 343,434.18 and 141,428.20 is: 195,169.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,866.60 : 343,434.18 = 141,428.20 : x
  2. Step 2: Convert to fraction form
    248,866.60/343,434.18 = 141,428.20/x
  3. Step 3: Cross multiply
    248,866.60x = 343,434.18 × 141,428.20
  4. Step 4: Simplify right side
    248,866.60x = 48,571,277,895.88
  5. Step 5: Solve for x
    x = 48,571,277,895.88/248,866.60
  6. Step 6: Final answer
    x = 195,169.93

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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.