Home / 306,845.46-423,434.93-170,885.15

Finding the Fourth Proportional to 306,845.46, 423,434.93 and 170,885.15

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Solution

The fourth proportional to 306,845.46, 423,434.93 and 170,885.15 is: 235,814.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,845.46 : 423,434.93 = 170,885.15 : x
  2. Step 2: Convert to fraction form
    306,845.46/423,434.93 = 170,885.15/x
  3. Step 3: Cross multiply
    306,845.46x = 423,434.93 × 170,885.15
  4. Step 4: Simplify right side
    306,845.46x = 72,358,738,556.69
  5. Step 5: Solve for x
    x = 72,358,738,556.69/306,845.46
  6. Step 6: Final answer
    x = 235,814.92

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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.