Home / 409,011.21-613,664.46-142,810.95

Finding the Fourth Proportional to 409,011.21, 613,664.46 and 142,810.95

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Solution

The fourth proportional to 409,011.21, 613,664.46 and 142,810.95 is: 214,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,011.21 : 613,664.46 = 142,810.95 : x
  2. Step 2: Convert to fraction form
    409,011.21/613,664.46 = 142,810.95/x
  3. Step 3: Cross multiply
    409,011.21x = 613,664.46 × 142,810.95
  4. Step 4: Simplify right side
    409,011.21x = 87,638,004,513.84
  5. Step 5: Solve for x
    x = 87,638,004,513.84/409,011.21
  6. Step 6: Final answer
    x = 214,267.98

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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.