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Finding the Fourth Proportional to 315,189.63, 434,962.71 and 171,952.67

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Solution

The fourth proportional to 315,189.63, 434,962.71 and 171,952.67 is: 237,295.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,189.63 : 434,962.71 = 171,952.67 : x
  2. Step 2: Convert to fraction form
    315,189.63/434,962.71 = 171,952.67/x
  3. Step 3: Cross multiply
    315,189.63x = 434,962.71 × 171,952.67
  4. Step 4: Simplify right side
    315,189.63x = 74,793,000,422.34
  5. Step 5: Solve for x
    x = 74,793,000,422.34/315,189.63
  6. Step 6: Final answer
    x = 237,295.24

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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.