Home / 208,373.21-287,554.77-112,880.30

Finding the Fourth Proportional to 208,373.21, 287,554.77 and 112,880.30

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Solution

The fourth proportional to 208,373.21, 287,554.77 and 112,880.30 is: 155,774.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,373.21 : 287,554.77 = 112,880.30 : x
  2. Step 2: Convert to fraction form
    208,373.21/287,554.77 = 112,880.30/x
  3. Step 3: Cross multiply
    208,373.21x = 287,554.77 × 112,880.30
  4. Step 4: Simplify right side
    208,373.21x = 32,459,268,704.03
  5. Step 5: Solve for x
    x = 32,459,268,704.03/208,373.21
  6. Step 6: Final answer
    x = 155,774.67

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1.5x scale

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.