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Finding the Fourth Proportional to 247,779.61, 371,683.49 and 70,272.56

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Solution

The fourth proportional to 247,779.61, 371,683.49 and 70,272.56 is: 105,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,779.61 : 371,683.49 = 70,272.56 : x
  2. Step 2: Convert to fraction form
    247,779.61/371,683.49 = 70,272.56/x
  3. Step 3: Cross multiply
    247,779.61x = 371,683.49 × 70,272.56
  4. Step 4: Simplify right side
    247,779.61x = 26,119,150,929.88
  5. Step 5: Solve for x
    x = 26,119,150,929.88/247,779.61
  6. Step 6: Final answer
    x = 105,412.84

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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.