Home / 457,255.34-631,012.25-253,319.51

Finding the Fourth Proportional to 457,255.34, 631,012.25 and 253,319.51

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Solution

The fourth proportional to 457,255.34, 631,012.25 and 253,319.51 is: 349,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,255.34 : 631,012.25 = 253,319.51 : x
  2. Step 2: Convert to fraction form
    457,255.34/631,012.25 = 253,319.51/x
  3. Step 3: Cross multiply
    457,255.34x = 631,012.25 × 253,319.51
  4. Step 4: Simplify right side
    457,255.34x = 159,847,709,552.34
  5. Step 5: Solve for x
    x = 159,847,709,552.34/457,255.34
  6. Step 6: Final answer
    x = 349,580.85

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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.