Home / 278,185.04-417,172.80-100,648.16

Finding the Fourth Proportional to 278,185.04, 417,172.80 and 100,648.16

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Solution

The fourth proportional to 278,185.04, 417,172.80 and 100,648.16 is: 150,934.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,185.04 : 417,172.80 = 100,648.16 : x
  2. Step 2: Convert to fraction form
    278,185.04/417,172.80 = 100,648.16/x
  3. Step 3: Cross multiply
    278,185.04x = 417,172.80 × 100,648.16
  4. Step 4: Simplify right side
    278,185.04x = 41,987,674,722.05
  5. Step 5: Solve for x
    x = 41,987,674,722.05/278,185.04
  6. Step 6: Final answer
    x = 150,934.34

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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.