Home / 262,278.77-393,370.15-70,155.68

Finding the Fourth Proportional to 262,278.77, 393,370.15 and 70,155.68

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Solution

The fourth proportional to 262,278.77, 393,370.15 and 70,155.68 is: 105,220.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,278.77 : 393,370.15 = 70,155.68 : x
  2. Step 2: Convert to fraction form
    262,278.77/393,370.15 = 70,155.68/x
  3. Step 3: Cross multiply
    262,278.77x = 393,370.15 × 70,155.68
  4. Step 4: Simplify right side
    262,278.77x = 27,597,148,222.71
  5. Step 5: Solve for x
    x = 27,597,148,222.71/262,278.77
  6. Step 6: Final answer
    x = 105,220.67

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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.