Home / 208,306.21-287,247.58-178,191.22

Finding the Fourth Proportional to 208,306.21, 287,247.58 and 178,191.22

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Solution

The fourth proportional to 208,306.21, 287,247.58 and 178,191.22 is: 245,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,306.21 : 287,247.58 = 178,191.22 : x
  2. Step 2: Convert to fraction form
    208,306.21/287,247.58 = 178,191.22/x
  3. Step 3: Cross multiply
    208,306.21x = 287,247.58 × 178,191.22
  4. Step 4: Simplify right side
    208,306.21x = 51,184,996,722.25
  5. Step 5: Solve for x
    x = 51,184,996,722.25/208,306.21
  6. Step 6: Final answer
    x = 245,719.98

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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.