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Finding the Fourth Proportional to 154,653.65, 231,980.60 and 42,334.80

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Solution

The fourth proportional to 154,653.65, 231,980.60 and 42,334.80 is: 63,502.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,653.65 : 231,980.60 = 42,334.80 : x
  2. Step 2: Convert to fraction form
    154,653.65/231,980.60 = 42,334.80/x
  3. Step 3: Cross multiply
    154,653.65x = 231,980.60 × 42,334.80
  4. Step 4: Simplify right side
    154,653.65x = 9,820,852,304.88
  5. Step 5: Solve for x
    x = 9,820,852,304.88/154,653.65
  6. Step 6: Final answer
    x = 63,502.23

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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.