Home / 283,333.44-390,996-156,005.76

Finding the Fourth Proportional to 283,333.44, 390,996 and 156,005.76

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Solution

The fourth proportional to 283,333.44, 390,996 and 156,005.76 is: 215,285.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,333.44 : 390,996 = 156,005.76 : x
  2. Step 2: Convert to fraction form
    283,333.44/390,996 = 156,005.76/x
  3. Step 3: Cross multiply
    283,333.44x = 390,996 × 156,005.76
  4. Step 4: Simplify right side
    283,333.44x = 60,997,628,136.96
  5. Step 5: Solve for x
    x = 60,997,628,136.96/283,333.44
  6. Step 6: Final answer
    x = 215,285.67

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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.