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Finding the Fourth Proportional to 330,838.65, 496,462.10 and 153,312.57

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Solution

The fourth proportional to 330,838.65, 496,462.10 and 153,312.57 is: 230,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,838.65 : 496,462.10 = 153,312.57 : x
  2. Step 2: Convert to fraction form
    330,838.65/496,462.10 = 153,312.57/x
  3. Step 3: Cross multiply
    330,838.65x = 496,462.10 × 153,312.57
  4. Step 4: Simplify right side
    330,838.65x = 76,113,879,692.03
  5. Step 5: Solve for x
    x = 76,113,879,692.03/330,838.65
  6. Step 6: Final answer
    x = 230,063.45

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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.