Home / 457,483.20-631,236.96-256,240.32

Finding the Fourth Proportional to 457,483.20, 631,236.96 and 256,240.32

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Solution

The fourth proportional to 457,483.20, 631,236.96 and 256,240.32 is: 353,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,483.20 : 631,236.96 = 256,240.32 : x
  2. Step 2: Convert to fraction form
    457,483.20/631,236.96 = 256,240.32/x
  3. Step 3: Cross multiply
    457,483.20x = 631,236.96 × 256,240.32
  4. Step 4: Simplify right side
    457,483.20x = 161,748,360,626.23
  5. Step 5: Solve for x
    x = 161,748,360,626.23/457,483.20
  6. Step 6: Final answer
    x = 353,561.31

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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.