Home / 300,984.09-415,362.75-180,130.47

Finding the Fourth Proportional to 300,984.09, 415,362.75 and 180,130.47

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Solution

The fourth proportional to 300,984.09, 415,362.75 and 180,130.47 is: 248,582.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,984.09 : 415,362.75 = 180,130.47 : x
  2. Step 2: Convert to fraction form
    300,984.09/415,362.75 = 180,130.47/x
  3. Step 3: Cross multiply
    300,984.09x = 415,362.75 × 180,130.47
  4. Step 4: Simplify right side
    300,984.09x = 74,819,487,377.99
  5. Step 5: Solve for x
    x = 74,819,487,377.99/300,984.09
  6. Step 6: Final answer
    x = 248,582.86

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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.