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Finding the Fourth Proportional to 253,525.08, 380,264.88 and 76,071.72

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Solution

The fourth proportional to 253,525.08, 380,264.88 and 76,071.72 is: 114,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,525.08 : 380,264.88 = 76,071.72 : x
  2. Step 2: Convert to fraction form
    253,525.08/380,264.88 = 76,071.72/x
  3. Step 3: Cross multiply
    253,525.08x = 380,264.88 × 76,071.72
  4. Step 4: Simplify right side
    253,525.08x = 28,927,403,477.19
  5. Step 5: Solve for x
    x = 28,927,403,477.19/253,525.08
  6. Step 6: Final answer
    x = 114,100.76

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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.