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Finding the Fourth Proportional to 402,341.20, 603,900.60 and 202,886.80

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Solution

The fourth proportional to 402,341.20, 603,900.60 and 202,886.80 is: 304,526.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,341.20 : 603,900.60 = 202,886.80 : x
  2. Step 2: Convert to fraction form
    402,341.20/603,900.60 = 202,886.80/x
  3. Step 3: Cross multiply
    402,341.20x = 603,900.60 × 202,886.80
  4. Step 4: Simplify right side
    402,341.20x = 122,523,460,252.08
  5. Step 5: Solve for x
    x = 122,523,460,252.08/402,341.20
  6. Step 6: Final answer
    x = 304,526.26

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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.