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Finding the Fourth Proportional to 272,303.70, 408,455.55 and 197,070.90

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Solution

The fourth proportional to 272,303.70, 408,455.55 and 197,070.90 is: 295,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,303.70 : 408,455.55 = 197,070.90 : x
  2. Step 2: Convert to fraction form
    272,303.70/408,455.55 = 197,070.90/x
  3. Step 3: Cross multiply
    272,303.70x = 408,455.55 × 197,070.90
  4. Step 4: Simplify right side
    272,303.70x = 80,494,702,848.50
  5. Step 5: Solve for x
    x = 80,494,702,848.50/272,303.70
  6. Step 6: Final answer
    x = 295,606.35

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1.5x scale

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.