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Finding the Fourth Proportional to 457,699.42, 631,662.45 and 253,814.18

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Solution

The fourth proportional to 457,699.42, 631,662.45 and 253,814.18 is: 350,284.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,699.42 : 631,662.45 = 253,814.18 : x
  2. Step 2: Convert to fraction form
    457,699.42/631,662.45 = 253,814.18/x
  3. Step 3: Cross multiply
    457,699.42x = 631,662.45 × 253,814.18
  4. Step 4: Simplify right side
    457,699.42x = 160,324,886,783.54
  5. Step 5: Solve for x
    x = 160,324,886,783.54/457,699.42
  6. Step 6: Final answer
    x = 350,284.23

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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.