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Finding the Fourth Proportional to 171,490.60, 256,506.90 and 153,848.80

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Solution

The fourth proportional to 171,490.60, 256,506.90 and 153,848.80 is: 230,119.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,490.60 : 256,506.90 = 153,848.80 : x
  2. Step 2: Convert to fraction form
    171,490.60/256,506.90 = 153,848.80/x
  3. Step 3: Cross multiply
    171,490.60x = 256,506.90 × 153,848.80
  4. Step 4: Simplify right side
    171,490.60x = 39,463,278,756.72
  5. Step 5: Solve for x
    x = 39,463,278,756.72/171,490.60
  6. Step 6: Final answer
    x = 230,119.19

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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.