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Finding the Fourth Proportional to 314,748.90, 434,353.50 and 171,508.92

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Solution

The fourth proportional to 314,748.90, 434,353.50 and 171,508.92 is: 236,682.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,748.90 : 434,353.50 = 171,508.92 : x
  2. Step 2: Convert to fraction form
    314,748.90/434,353.50 = 171,508.92/x
  3. Step 3: Cross multiply
    314,748.90x = 434,353.50 × 171,508.92
  4. Step 4: Simplify right side
    314,748.90x = 74,495,499,683.22
  5. Step 5: Solve for x
    x = 74,495,499,683.22/314,748.90
  6. Step 6: Final answer
    x = 236,682.32

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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.