Home / 211,890.06-292,667.31-158,412.78

Finding the Fourth Proportional to 211,890.06, 292,667.31 and 158,412.78

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Solution

The fourth proportional to 211,890.06, 292,667.31 and 158,412.78 is: 218,803.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,890.06 : 292,667.31 = 158,412.78 : x
  2. Step 2: Convert to fraction form
    211,890.06/292,667.31 = 158,412.78/x
  3. Step 3: Cross multiply
    211,890.06x = 292,667.31 × 158,412.78
  4. Step 4: Simplify right side
    211,890.06x = 46,362,242,192.22
  5. Step 5: Solve for x
    x = 46,362,242,192.22/211,890.06
  6. Step 6: Final answer
    x = 218,803.29

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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.