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Finding the Fourth Proportional to 314,609.67, 434,161.53 and 171,370.35

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Solution

The fourth proportional to 314,609.67, 434,161.53 and 171,370.35 is: 236,491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,609.67 : 434,161.53 = 171,370.35 : x
  2. Step 2: Convert to fraction form
    314,609.67/434,161.53 = 171,370.35/x
  3. Step 3: Cross multiply
    314,609.67x = 434,161.53 × 171,370.35
  4. Step 4: Simplify right side
    314,609.67x = 74,402,413,352.64
  5. Step 5: Solve for x
    x = 74,402,413,352.64/314,609.67
  6. Step 6: Final answer
    x = 236,491.18

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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.