Home / 320,075.07-480,184.04-120,397.11

Finding the Fourth Proportional to 320,075.07, 480,184.04 and 120,397.11

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Solution

The fourth proportional to 320,075.07, 480,184.04 and 120,397.11 is: 180,622.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,075.07 : 480,184.04 = 120,397.11 : x
  2. Step 2: Convert to fraction form
    320,075.07/480,184.04 = 120,397.11/x
  3. Step 3: Cross multiply
    320,075.07x = 480,184.04 × 120,397.11
  4. Step 4: Simplify right side
    320,075.07x = 57,812,770,684.12
  5. Step 5: Solve for x
    x = 57,812,770,684.12/320,075.07
  6. Step 6: Final answer
    x = 180,622.54

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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.