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Finding the Fourth Proportional to 215,798.56, 322,099.88 and 202,501.60

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Solution

The fourth proportional to 215,798.56, 322,099.88 and 202,501.60 is: 302,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,798.56 : 322,099.88 = 202,501.60 : x
  2. Step 2: Convert to fraction form
    215,798.56/322,099.88 = 202,501.60/x
  3. Step 3: Cross multiply
    215,798.56x = 322,099.88 × 202,501.60
  4. Step 4: Simplify right side
    215,798.56x = 65,225,741,059.81
  5. Step 5: Solve for x
    x = 65,225,741,059.81/215,798.56
  6. Step 6: Final answer
    x = 302,252.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.