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Finding the Fourth Proportional to 317,290.50, 437,852.88 and 181,315.80

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Solution

The fourth proportional to 317,290.50, 437,852.88 and 181,315.80 is: 250,211.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,290.50 : 437,852.88 = 181,315.80 : x
  2. Step 2: Convert to fraction form
    317,290.50/437,852.88 = 181,315.80/x
  3. Step 3: Cross multiply
    317,290.50x = 437,852.88 × 181,315.80
  4. Step 4: Simplify right side
    317,290.50x = 79,389,645,219.50
  5. Step 5: Solve for x
    x = 79,389,645,219.50/317,290.50
  6. Step 6: Final answer
    x = 250,211.23

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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.