Home / 219,288.24-302,615.46-128,626.83

Finding the Fourth Proportional to 219,288.24, 302,615.46 and 128,626.83

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Solution

The fourth proportional to 219,288.24, 302,615.46 and 128,626.83 is: 177,503.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,288.24 : 302,615.46 = 128,626.83 : x
  2. Step 2: Convert to fraction form
    219,288.24/302,615.46 = 128,626.83/x
  3. Step 3: Cross multiply
    219,288.24x = 302,615.46 × 128,626.83
  4. Step 4: Simplify right side
    219,288.24x = 38,924,467,328.79
  5. Step 5: Solve for x
    x = 38,924,467,328.79/219,288.24
  6. Step 6: Final answer
    x = 177,503.67

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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.