Home / 439,733.20-659,599.80-140,211.40

Finding the Fourth Proportional to 439,733.20, 659,599.80 and 140,211.40

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Solution

The fourth proportional to 439,733.20, 659,599.80 and 140,211.40 is: 210,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,733.20 : 659,599.80 = 140,211.40 : x
  2. Step 2: Convert to fraction form
    439,733.20/659,599.80 = 140,211.40/x
  3. Step 3: Cross multiply
    439,733.20x = 659,599.80 × 140,211.40
  4. Step 4: Simplify right side
    439,733.20x = 92,483,411,397.72
  5. Step 5: Solve for x
    x = 92,483,411,397.72/439,733.20
  6. Step 6: Final answer
    x = 210,317.10

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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.