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Finding the Fourth Proportional to 296,998.70, 445,498.05 and 163,810.40

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Solution

The fourth proportional to 296,998.70, 445,498.05 and 163,810.40 is: 245,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,998.70 : 445,498.05 = 163,810.40 : x
  2. Step 2: Convert to fraction form
    296,998.70/445,498.05 = 163,810.40/x
  3. Step 3: Cross multiply
    296,998.70x = 445,498.05 × 163,810.40
  4. Step 4: Simplify right side
    296,998.70x = 72,977,213,769.72
  5. Step 5: Solve for x
    x = 72,977,213,769.72/296,998.70
  6. Step 6: Final answer
    x = 245,715.60

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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.