Home / 218,409.06-301,354.65-122,880.90

Finding the Fourth Proportional to 218,409.06, 301,354.65 and 122,880.90

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Solution

The fourth proportional to 218,409.06, 301,354.65 and 122,880.90 is: 169,547.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,409.06 : 301,354.65 = 122,880.90 : x
  2. Step 2: Convert to fraction form
    218,409.06/301,354.65 = 122,880.90/x
  3. Step 3: Cross multiply
    218,409.06x = 301,354.65 × 122,880.90
  4. Step 4: Simplify right side
    218,409.06x = 37,030,730,611.19
  5. Step 5: Solve for x
    x = 37,030,730,611.19/218,409.06
  6. Step 6: Final answer
    x = 169,547.59

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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.