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Finding the Fourth Proportional to 253,645.07, 380,492.78 and 93,762.90

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Solution

The fourth proportional to 253,645.07, 380,492.78 and 93,762.90 is: 140,653.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,645.07 : 380,492.78 = 93,762.90 : x
  2. Step 2: Convert to fraction form
    253,645.07/380,492.78 = 93,762.90/x
  3. Step 3: Cross multiply
    253,645.07x = 380,492.78 × 93,762.90
  4. Step 4: Simplify right side
    253,645.07x = 35,676,106,013.05
  5. Step 5: Solve for x
    x = 35,676,106,013.05/253,645.07
  6. Step 6: Final answer
    x = 140,653.66

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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.