Home / 211,206.63-316,810.35-51,281.89

Finding the Fourth Proportional to 211,206.63, 316,810.35 and 51,281.89

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Solution

The fourth proportional to 211,206.63, 316,810.35 and 51,281.89 is: 76,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,206.63 : 316,810.35 = 51,281.89 : x
  2. Step 2: Convert to fraction form
    211,206.63/316,810.35 = 51,281.89/x
  3. Step 3: Cross multiply
    211,206.63x = 316,810.35 × 51,281.89
  4. Step 4: Simplify right side
    211,206.63x = 16,246,631,679.10
  5. Step 5: Solve for x
    x = 16,246,631,679.10/211,206.63
  6. Step 6: Final answer
    x = 76,922.93

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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.