Home / 280,815.99-421,597.66-147,789.67

Finding the Fourth Proportional to 280,815.99, 421,597.66 and 147,789.67

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Solution

The fourth proportional to 280,815.99, 421,597.66 and 147,789.67 is: 221,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,815.99 : 421,597.66 = 147,789.67 : x
  2. Step 2: Convert to fraction form
    280,815.99/421,597.66 = 147,789.67/x
  3. Step 3: Cross multiply
    280,815.99x = 421,597.66 × 147,789.67
  4. Step 4: Simplify right side
    280,815.99x = 62,307,776,936.18
  5. Step 5: Solve for x
    x = 62,307,776,936.18/280,815.99
  6. Step 6: Final answer
    x = 221,881.16

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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.