Home / 262,478.37-393,780.27-84,985.58

Finding the Fourth Proportional to 262,478.37, 393,780.27 and 84,985.58

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Solution

The fourth proportional to 262,478.37, 393,780.27 and 84,985.58 is: 127,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,478.37 : 393,780.27 = 84,985.58 : x
  2. Step 2: Convert to fraction form
    262,478.37/393,780.27 = 84,985.58/x
  3. Step 3: Cross multiply
    262,478.37x = 393,780.27 × 84,985.58
  4. Step 4: Simplify right side
    262,478.37x = 33,465,642,669.61
  5. Step 5: Solve for x
    x = 33,465,642,669.61/262,478.37
  6. Step 6: Final answer
    x = 127,498.67

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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.