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Finding the Fourth Proportional to 310,515.90, 465,445.80 and 177,108.90

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Solution

The fourth proportional to 310,515.90, 465,445.80 and 177,108.90 is: 265,476.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,515.90 : 465,445.80 = 177,108.90 : x
  2. Step 2: Convert to fraction form
    310,515.90/465,445.80 = 177,108.90/x
  3. Step 3: Cross multiply
    310,515.90x = 465,445.80 × 177,108.90
  4. Step 4: Simplify right side
    310,515.90x = 82,434,593,647.62
  5. Step 5: Solve for x
    x = 82,434,593,647.62/310,515.90
  6. Step 6: Final answer
    x = 265,476.24

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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.