Home / 345,460.14-518,340.80-120,981.60

Finding the Fourth Proportional to 345,460.14, 518,340.80 and 120,981.60

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Solution

The fourth proportional to 345,460.14, 518,340.80 and 120,981.60 is: 181,525.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,460.14 : 518,340.80 = 120,981.60 : x
  2. Step 2: Convert to fraction form
    345,460.14/518,340.80 = 120,981.60/x
  3. Step 3: Cross multiply
    345,460.14x = 518,340.80 × 120,981.60
  4. Step 4: Simplify right side
    345,460.14x = 62,709,698,724.37
  5. Step 5: Solve for x
    x = 62,709,698,724.37/345,460.14
  6. Step 6: Final answer
    x = 181,525.14

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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.