Home / 201,870.29-278,584.25-111,224.95

Finding the Fourth Proportional to 201,870.29, 278,584.25 and 111,224.95

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Solution

The fourth proportional to 201,870.29, 278,584.25 and 111,224.95 is: 153,492.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,870.29 : 278,584.25 = 111,224.95 : x
  2. Step 2: Convert to fraction form
    201,870.29/278,584.25 = 111,224.95/x
  3. Step 3: Cross multiply
    201,870.29x = 278,584.25 × 111,224.95
  4. Step 4: Simplify right side
    201,870.29x = 30,985,518,024.45
  5. Step 5: Solve for x
    x = 30,985,518,024.45/201,870.29
  6. Step 6: Final answer
    x = 153,492.21

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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.