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Finding the Fourth Proportional to 145,576.74, 201,005.40 and 143,251.67

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Solution

The fourth proportional to 145,576.74, 201,005.40 and 143,251.67 is: 197,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,576.74 : 201,005.40 = 143,251.67 : x
  2. Step 2: Convert to fraction form
    145,576.74/201,005.40 = 143,251.67/x
  3. Step 3: Cross multiply
    145,576.74x = 201,005.40 × 143,251.67
  4. Step 4: Simplify right side
    145,576.74x = 28,794,357,507.73
  5. Step 5: Solve for x
    x = 28,794,357,507.73/145,576.74
  6. Step 6: Final answer
    x = 197,795.04

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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.