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Finding the Fourth Proportional to 383,554.40, 575,374.80 and 117,312.80

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Solution

The fourth proportional to 383,554.40, 575,374.80 and 117,312.80 is: 175,982.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,554.40 : 575,374.80 = 117,312.80 : x
  2. Step 2: Convert to fraction form
    383,554.40/575,374.80 = 117,312.80/x
  3. Step 3: Cross multiply
    383,554.40x = 575,374.80 × 117,312.80
  4. Step 4: Simplify right side
    383,554.40x = 67,498,828,837.44
  5. Step 5: Solve for x
    x = 67,498,828,837.44/383,554.40
  6. Step 6: Final answer
    x = 175,982.41

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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.