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Finding the Fourth Proportional to 207,028.40, 310,542.60 and 144,042.80

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Solution

The fourth proportional to 207,028.40, 310,542.60 and 144,042.80 is: 216,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,028.40 : 310,542.60 = 144,042.80 : x
  2. Step 2: Convert to fraction form
    207,028.40/310,542.60 = 144,042.80/x
  3. Step 3: Cross multiply
    207,028.40x = 310,542.60 × 144,042.80
  4. Step 4: Simplify right side
    207,028.40x = 44,731,425,623.28
  5. Step 5: Solve for x
    x = 44,731,425,623.28/207,028.40
  6. Step 6: Final answer
    x = 216,064.20

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1.5x scale

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.