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Finding the Fourth Proportional to 314,607.20, 434,165.60 and 171,374.88

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Solution

The fourth proportional to 314,607.20, 434,165.60 and 171,374.88 is: 236,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,607.20 : 434,165.60 = 171,374.88 : x
  2. Step 2: Convert to fraction form
    314,607.20/434,165.60 = 171,374.88/x
  3. Step 3: Cross multiply
    314,607.20x = 434,165.60 × 171,374.88
  4. Step 4: Simplify right side
    314,607.20x = 74,405,077,600.13
  5. Step 5: Solve for x
    x = 74,405,077,600.13/314,607.20
  6. Step 6: Final answer
    x = 236,501.51

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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.