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Finding the Fourth Proportional to 210,079.88, 290,052.20 and 161,595.71

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Solution

The fourth proportional to 210,079.88, 290,052.20 and 161,595.71 is: 223,111.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,079.88 : 290,052.20 = 161,595.71 : x
  2. Step 2: Convert to fraction form
    210,079.88/290,052.20 = 161,595.71/x
  3. Step 3: Cross multiply
    210,079.88x = 290,052.20 × 161,595.71
  4. Step 4: Simplify right side
    210,079.88x = 46,871,191,196.06
  5. Step 5: Solve for x
    x = 46,871,191,196.06/210,079.88
  6. Step 6: Final answer
    x = 223,111.28

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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.