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Finding the Fourth Proportional to 201,014.78, 301,521.87 and 156,674.78

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Solution

The fourth proportional to 201,014.78, 301,521.87 and 156,674.78 is: 235,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,014.78 : 301,521.87 = 156,674.78 : x
  2. Step 2: Convert to fraction form
    201,014.78/301,521.87 = 156,674.78/x
  3. Step 3: Cross multiply
    201,014.78x = 301,521.87 × 156,674.78
  4. Step 4: Simplify right side
    201,014.78x = 47,240,871,139.83
  5. Step 5: Solve for x
    x = 47,240,871,139.83/201,014.78
  6. Step 6: Final answer
    x = 235,011.93

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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.