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Finding the Fourth Proportional to 253,017.54, 379,526.34 and 103,328.31

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Solution

The fourth proportional to 253,017.54, 379,526.34 and 103,328.31 is: 154,992.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,017.54 : 379,526.34 = 103,328.31 : x
  2. Step 2: Convert to fraction form
    253,017.54/379,526.34 = 103,328.31/x
  3. Step 3: Cross multiply
    253,017.54x = 379,526.34 × 103,328.31
  4. Step 4: Simplify right side
    253,017.54x = 39,215,815,312.69
  5. Step 5: Solve for x
    x = 39,215,815,312.69/253,017.54
  6. Step 6: Final answer
    x = 154,992.48

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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.