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Finding the Fourth Proportional to 343,348.80, 513,986.40 and 301,876.80

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Solution

The fourth proportional to 343,348.80, 513,986.40 and 301,876.80 is: 451,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,348.80 : 513,986.40 = 301,876.80 : x
  2. Step 2: Convert to fraction form
    343,348.80/513,986.40 = 301,876.80/x
  3. Step 3: Cross multiply
    343,348.80x = 513,986.40 × 301,876.80
  4. Step 4: Simplify right side
    343,348.80x = 155,160,569,675.52
  5. Step 5: Solve for x
    x = 155,160,569,675.52/343,348.80
  6. Step 6: Final answer
    x = 451,903.63

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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.