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Finding the Fourth Proportional to 201,325.40, 301,986.98 and 51,565.40

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Solution

The fourth proportional to 201,325.40, 301,986.98 and 51,565.40 is: 77,347.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,325.40 : 301,986.98 = 51,565.40 : x
  2. Step 2: Convert to fraction form
    201,325.40/301,986.98 = 51,565.40/x
  3. Step 3: Cross multiply
    201,325.40x = 301,986.98 × 51,565.40
  4. Step 4: Simplify right side
    201,325.40x = 15,572,079,418.49
  5. Step 5: Solve for x
    x = 15,572,079,418.49/201,325.40
  6. Step 6: Final answer
    x = 77,347.81

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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.