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Finding the Fourth Proportional to 243,018.40, 364,527.60 and 154,663.60

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Solution

The fourth proportional to 243,018.40, 364,527.60 and 154,663.60 is: 231,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,018.40 : 364,527.60 = 154,663.60 : x
  2. Step 2: Convert to fraction form
    243,018.40/364,527.60 = 154,663.60/x
  3. Step 3: Cross multiply
    243,018.40x = 364,527.60 × 154,663.60
  4. Step 4: Simplify right side
    243,018.40x = 56,379,150,915.36
  5. Step 5: Solve for x
    x = 56,379,150,915.36/243,018.40
  6. Step 6: Final answer
    x = 231,995.40

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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.