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Finding the Fourth Proportional to 382,187.20, 573,280.80 and 340,852.90

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Solution

The fourth proportional to 382,187.20, 573,280.80 and 340,852.90 is: 511,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,187.20 : 573,280.80 = 340,852.90 : x
  2. Step 2: Convert to fraction form
    382,187.20/573,280.80 = 340,852.90/x
  3. Step 3: Cross multiply
    382,187.20x = 573,280.80 × 340,852.90
  4. Step 4: Simplify right side
    382,187.20x = 195,404,423,194.32
  5. Step 5: Solve for x
    x = 195,404,423,194.32/382,187.20
  6. Step 6: Final answer
    x = 511,279.35

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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.