Home / 207,220.55-285,811.29-142,710.27

Finding the Fourth Proportional to 207,220.55, 285,811.29 and 142,710.27

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Solution

The fourth proportional to 207,220.55, 285,811.29 and 142,710.27 is: 196,834.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,220.55 : 285,811.29 = 142,710.27 : x
  2. Step 2: Convert to fraction form
    207,220.55/285,811.29 = 142,710.27/x
  3. Step 3: Cross multiply
    207,220.55x = 285,811.29 × 142,710.27
  4. Step 4: Simplify right side
    207,220.55x = 40,788,206,364.95
  5. Step 5: Solve for x
    x = 40,788,206,364.95/207,220.55
  6. Step 6: Final answer
    x = 196,834.76

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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.