Home / 210,945.22-316,417.35-53,186.02

Finding the Fourth Proportional to 210,945.22, 316,417.35 and 53,186.02

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Solution

The fourth proportional to 210,945.22, 316,417.35 and 53,186.02 is: 79,778.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,945.22 : 316,417.35 = 53,186.02 : x
  2. Step 2: Convert to fraction form
    210,945.22/316,417.35 = 53,186.02/x
  3. Step 3: Cross multiply
    210,945.22x = 316,417.35 × 53,186.02
  4. Step 4: Simplify right side
    210,945.22x = 16,828,979,505.45
  5. Step 5: Solve for x
    x = 16,828,979,505.45/210,945.22
  6. Step 6: Final answer
    x = 79,778.91

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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.