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Finding the Fourth Proportional to 201,012.54, 301,518.48 and 156,672.54

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Solution

The fourth proportional to 201,012.54, 301,518.48 and 156,672.54 is: 235,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,012.54 : 301,518.48 = 156,672.54 : x
  2. Step 2: Convert to fraction form
    201,012.54/301,518.48 = 156,672.54/x
  3. Step 3: Cross multiply
    201,012.54x = 301,518.48 × 156,672.54
  4. Step 4: Simplify right side
    201,012.54x = 47,239,666,118.54
  5. Step 5: Solve for x
    x = 47,239,666,118.54/201,012.54
  6. Step 6: Final answer
    x = 235,008.55

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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.