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Finding the Fourth Proportional to 457,856.35, 631,838.58 and 253,907.06

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Solution

The fourth proportional to 457,856.35, 631,838.58 and 253,907.06 is: 350,389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,856.35 : 631,838.58 = 253,907.06 : x
  2. Step 2: Convert to fraction form
    457,856.35/631,838.58 = 253,907.06/x
  3. Step 3: Cross multiply
    457,856.35x = 631,838.58 × 253,907.06
  4. Step 4: Simplify right side
    457,856.35x = 160,428,272,131.03
  5. Step 5: Solve for x
    x = 160,428,272,131.03/457,856.35
  6. Step 6: Final answer
    x = 350,389.97

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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.