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Finding the Fourth Proportional to 297,000.70, 445,501.05 and 288,252.70

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Solution

The fourth proportional to 297,000.70, 445,501.05 and 288,252.70 is: 432,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,000.70 : 445,501.05 = 288,252.70 : x
  2. Step 2: Convert to fraction form
    297,000.70/445,501.05 = 288,252.70/x
  3. Step 3: Cross multiply
    297,000.70x = 445,501.05 × 288,252.70
  4. Step 4: Simplify right side
    297,000.70x = 128,416,880,515.34
  5. Step 5: Solve for x
    x = 128,416,880,515.34/297,000.70
  6. Step 6: Final answer
    x = 432,379.05

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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.