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Finding the Fourth Proportional to 450,184.20, 621,307.80 and 259,234.80

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Solution

The fourth proportional to 450,184.20, 621,307.80 and 259,234.80 is: 357,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,184.20 : 621,307.80 = 259,234.80 : x
  2. Step 2: Convert to fraction form
    450,184.20/621,307.80 = 259,234.80/x
  3. Step 3: Cross multiply
    450,184.20x = 621,307.80 × 259,234.80
  4. Step 4: Simplify right side
    450,184.20x = 161,064,603,271.44
  5. Step 5: Solve for x
    x = 161,064,603,271.44/450,184.20
  6. Step 6: Final answer
    x = 357,774.89

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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.