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Finding the Fourth Proportional to 315,066.90, 472,600.35 and 196,871.70

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Solution

The fourth proportional to 315,066.90, 472,600.35 and 196,871.70 is: 295,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,066.90 : 472,600.35 = 196,871.70 : x
  2. Step 2: Convert to fraction form
    315,066.90/472,600.35 = 196,871.70/x
  3. Step 3: Cross multiply
    315,066.90x = 472,600.35 × 196,871.70
  4. Step 4: Simplify right side
    315,066.90x = 93,041,634,325.10
  5. Step 5: Solve for x
    x = 93,041,634,325.10/315,066.90
  6. Step 6: Final answer
    x = 295,307.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.