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Finding the Fourth Proportional to 308,460.57, 425,657.91 and 170,631.27

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Solution

The fourth proportional to 308,460.57, 425,657.91 and 170,631.27 is: 235,461.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,460.57 : 425,657.91 = 170,631.27 : x
  2. Step 2: Convert to fraction form
    308,460.57/425,657.91 = 170,631.27/x
  3. Step 3: Cross multiply
    308,460.57x = 425,657.91 × 170,631.27
  4. Step 4: Simplify right side
    308,460.57x = 72,630,550,408.71
  5. Step 5: Solve for x
    x = 72,630,550,408.71/308,460.57
  6. Step 6: Final answer
    x = 235,461.38

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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.