Home / 211,211.64-316,030.02-208,849.56

Finding the Fourth Proportional to 211,211.64, 316,030.02 and 208,849.56

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Solution

The fourth proportional to 211,211.64, 316,030.02 and 208,849.56 is: 312,495.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,211.64 : 316,030.02 = 208,849.56 : x
  2. Step 2: Convert to fraction form
    211,211.64/316,030.02 = 208,849.56/x
  3. Step 3: Cross multiply
    211,211.64x = 316,030.02 × 208,849.56
  4. Step 4: Simplify right side
    211,211.64x = 66,002,730,623.79
  5. Step 5: Solve for x
    x = 66,002,730,623.79/211,211.64
  6. Step 6: Final answer
    x = 312,495.71

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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.