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Finding the Fourth Proportional to 174,637.62, 261,958.26 and 139,798.74

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Solution

The fourth proportional to 174,637.62, 261,958.26 and 139,798.74 is: 209,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,637.62 : 261,958.26 = 139,798.74 : x
  2. Step 2: Convert to fraction form
    174,637.62/261,958.26 = 139,798.74/x
  3. Step 3: Cross multiply
    174,637.62x = 261,958.26 × 139,798.74
  4. Step 4: Simplify right side
    174,637.62x = 36,621,434,680.59
  5. Step 5: Solve for x
    x = 36,621,434,680.59/174,637.62
  6. Step 6: Final answer
    x = 209,699.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.