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Finding the Fourth Proportional to 342,303.30, 472,396.49 and 197,131.12

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Solution

The fourth proportional to 342,303.30, 472,396.49 and 197,131.12 is: 272,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,303.30 : 472,396.49 = 197,131.12 : x
  2. Step 2: Convert to fraction form
    342,303.30/472,396.49 = 197,131.12/x
  3. Step 3: Cross multiply
    342,303.30x = 472,396.49 × 197,131.12
  4. Step 4: Simplify right side
    342,303.30x = 93,124,047,730.36
  5. Step 5: Solve for x
    x = 93,124,047,730.36/342,303.30
  6. Step 6: Final answer
    x = 272,051.27

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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.