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Finding the Fourth Proportional to 228,000.65, 314,597.58 and 143,079.44

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Solution

The fourth proportional to 228,000.65, 314,597.58 and 143,079.44 is: 197,422.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,000.65 : 314,597.58 = 143,079.44 : x
  2. Step 2: Convert to fraction form
    228,000.65/314,597.58 = 143,079.44/x
  3. Step 3: Cross multiply
    228,000.65x = 314,597.58 × 143,079.44
  4. Step 4: Simplify right side
    228,000.65x = 45,012,445,571.76
  5. Step 5: Solve for x
    x = 45,012,445,571.76/228,000.65
  6. Step 6: Final answer
    x = 197,422.44

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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.