Home / 692,139.09-1,038,202.15-218,824.50

Finding the Fourth Proportional to 692,139.09, 1,038,202.15 and 218,824.50

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Solution

The fourth proportional to 692,139.09, 1,038,202.15 and 218,824.50 is: 328,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,139.09 : 1,038,202.15 = 218,824.50 : x
  2. Step 2: Convert to fraction form
    692,139.09/1,038,202.15 = 218,824.50/x
  3. Step 3: Cross multiply
    692,139.09x = 1,038,202.15 × 218,824.50
  4. Step 4: Simplify right side
    692,139.09x = 227,184,066,372.68
  5. Step 5: Solve for x
    x = 227,184,066,372.68/692,139.09
  6. Step 6: Final answer
    x = 328,234.70

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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.