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Finding the Fourth Proportional to 457,476.51, 631,361.55 and 253,571.57

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Solution

The fourth proportional to 457,476.51, 631,361.55 and 253,571.57 is: 349,953.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,476.51 : 631,361.55 = 253,571.57 : x
  2. Step 2: Convert to fraction form
    457,476.51/631,361.55 = 253,571.57/x
  3. Step 3: Cross multiply
    457,476.51x = 631,361.55 × 253,571.57
  4. Step 4: Simplify right side
    457,476.51x = 160,095,336,314.33
  5. Step 5: Solve for x
    x = 160,095,336,314.33/457,476.51
  6. Step 6: Final answer
    x = 349,953.13

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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.