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Finding the Fourth Proportional to 314,988.63, 434,684.75 and 171,748.67

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Solution

The fourth proportional to 314,988.63, 434,684.75 and 171,748.67 is: 237,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,988.63 : 434,684.75 = 171,748.67 : x
  2. Step 2: Convert to fraction form
    314,988.63/434,684.75 = 171,748.67/x
  3. Step 3: Cross multiply
    314,988.63x = 434,684.75 × 171,748.67
  4. Step 4: Simplify right side
    314,988.63x = 74,656,527,094.72
  5. Step 5: Solve for x
    x = 74,656,527,094.72/314,988.63
  6. Step 6: Final answer
    x = 237,013.40

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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.