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Finding the Fourth Proportional to 247,638.15, 371,457.23 and 60,649.65

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Solution

The fourth proportional to 247,638.15, 371,457.23 and 60,649.65 is: 90,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,638.15 : 371,457.23 = 60,649.65 : x
  2. Step 2: Convert to fraction form
    247,638.15/371,457.23 = 60,649.65/x
  3. Step 3: Cross multiply
    247,638.15x = 371,457.23 × 60,649.65
  4. Step 4: Simplify right side
    247,638.15x = 22,528,750,686.22
  5. Step 5: Solve for x
    x = 22,528,750,686.22/247,638.15
  6. Step 6: Final answer
    x = 90,974.48

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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.