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Finding the Fourth Proportional to 253,888.86, 380,271.73 and 103,673.64

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Solution

The fourth proportional to 253,888.86, 380,271.73 and 103,673.64 is: 155,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,888.86 : 380,271.73 = 103,673.64 : x
  2. Step 2: Convert to fraction form
    253,888.86/380,271.73 = 103,673.64/x
  3. Step 3: Cross multiply
    253,888.86x = 380,271.73 × 103,673.64
  4. Step 4: Simplify right side
    253,888.86x = 39,424,154,438.20
  5. Step 5: Solve for x
    x = 39,424,154,438.20/253,888.86
  6. Step 6: Final answer
    x = 155,281.15

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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.