Home / 291,759.18-402,237.72-218,852.16

Finding the Fourth Proportional to 291,759.18, 402,237.72 and 218,852.16

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Solution

The fourth proportional to 291,759.18, 402,237.72 and 218,852.16 is: 301,723.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,759.18 : 402,237.72 = 218,852.16 : x
  2. Step 2: Convert to fraction form
    291,759.18/402,237.72 = 218,852.16/x
  3. Step 3: Cross multiply
    291,759.18x = 402,237.72 × 218,852.16
  4. Step 4: Simplify right side
    291,759.18x = 88,030,593,855.48
  5. Step 5: Solve for x
    x = 88,030,593,855.48/291,759.18
  6. Step 6: Final answer
    x = 301,723.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.