Home / 312,375.04-431,075.73-169,132.12

Finding the Fourth Proportional to 312,375.04, 431,075.73 and 169,132.12

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Solution

The fourth proportional to 312,375.04, 431,075.73 and 169,132.12 is: 233,401.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,375.04 : 431,075.73 = 169,132.12 : x
  2. Step 2: Convert to fraction form
    312,375.04/431,075.73 = 169,132.12/x
  3. Step 3: Cross multiply
    312,375.04x = 431,075.73 × 169,132.12
  4. Step 4: Simplify right side
    312,375.04x = 72,908,752,095.45
  5. Step 5: Solve for x
    x = 72,908,752,095.45/312,375.04
  6. Step 6: Final answer
    x = 233,401.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.