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Finding the Fourth Proportional to 315,010.40, 472,515.60 and 301,232.30

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Solution

The fourth proportional to 315,010.40, 472,515.60 and 301,232.30 is: 451,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,010.40 : 472,515.60 = 301,232.30 : x
  2. Step 2: Convert to fraction form
    315,010.40/472,515.60 = 301,232.30/x
  3. Step 3: Cross multiply
    315,010.40x = 472,515.60 × 301,232.30
  4. Step 4: Simplify right side
    315,010.40x = 142,336,960,973.88
  5. Step 5: Solve for x
    x = 142,336,960,973.88/315,010.40
  6. Step 6: Final answer
    x = 451,848.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.