Home / 315,198.08-434,913.76-187,885.52

Finding the Fourth Proportional to 315,198.08, 434,913.76 and 187,885.52

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Solution

The fourth proportional to 315,198.08, 434,913.76 and 187,885.52 is: 259,246.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,198.08 : 434,913.76 = 187,885.52 : x
  2. Step 2: Convert to fraction form
    315,198.08/434,913.76 = 187,885.52/x
  3. Step 3: Cross multiply
    315,198.08x = 434,913.76 × 187,885.52
  4. Step 4: Simplify right side
    315,198.08x = 81,713,997,952.76
  5. Step 5: Solve for x
    x = 81,713,997,952.76/315,198.08
  6. Step 6: Final answer
    x = 259,246.50

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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.