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Finding the Fourth Proportional to 216,607.34, 324,911.01 and 142,718.06

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Solution

The fourth proportional to 216,607.34, 324,911.01 and 142,718.06 is: 214,077.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,607.34 : 324,911.01 = 142,718.06 : x
  2. Step 2: Convert to fraction form
    216,607.34/324,911.01 = 142,718.06/x
  3. Step 3: Cross multiply
    216,607.34x = 324,911.01 × 142,718.06
  4. Step 4: Simplify right side
    216,607.34x = 46,370,669,019.84
  5. Step 5: Solve for x
    x = 46,370,669,019.84/216,607.34
  6. Step 6: Final answer
    x = 214,077.09

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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.