Home / 219,463.78-302,859.08-122,667.51

Finding the Fourth Proportional to 219,463.78, 302,859.08 and 122,667.51

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Solution

The fourth proportional to 219,463.78, 302,859.08 and 122,667.51 is: 169,280.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,463.78 : 302,859.08 = 122,667.51 : x
  2. Step 2: Convert to fraction form
    219,463.78/302,859.08 = 122,667.51/x
  3. Step 3: Cross multiply
    219,463.78x = 302,859.08 × 122,667.51
  4. Step 4: Simplify right side
    219,463.78x = 37,150,967,710.20
  5. Step 5: Solve for x
    x = 37,150,967,710.20/219,463.78
  6. Step 6: Final answer
    x = 169,280.63

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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.