Home / 208,020.78-312,030.19-50,248.75

Finding the Fourth Proportional to 208,020.78, 312,030.19 and 50,248.75

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Solution

The fourth proportional to 208,020.78, 312,030.19 and 50,248.75 is: 75,372.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,020.78 : 312,030.19 = 50,248.75 : x
  2. Step 2: Convert to fraction form
    208,020.78/312,030.19 = 50,248.75/x
  3. Step 3: Cross multiply
    208,020.78x = 312,030.19 × 50,248.75
  4. Step 4: Simplify right side
    208,020.78x = 15,679,127,009.76
  5. Step 5: Solve for x
    x = 15,679,127,009.76/208,020.78
  6. Step 6: Final answer
    x = 75,372.89

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1.5x scale

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.