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Finding the Fourth Proportional to 358,870.20, 537,722.10 and 299,383.80

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Solution

The fourth proportional to 358,870.20, 537,722.10 and 299,383.80 is: 448,589.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,870.20 : 537,722.10 = 299,383.80 : x
  2. Step 2: Convert to fraction form
    358,870.20/537,722.10 = 299,383.80/x
  3. Step 3: Cross multiply
    358,870.20x = 537,722.10 × 299,383.80
  4. Step 4: Simplify right side
    358,870.20x = 160,985,285,641.98
  5. Step 5: Solve for x
    x = 160,985,285,641.98/358,870.20
  6. Step 6: Final answer
    x = 448,589.17

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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.