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Finding the Fourth Proportional to 262,391.60, 392,712.60 and 230,898.80

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Solution

The fourth proportional to 262,391.60, 392,712.60 and 230,898.80 is: 345,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,391.60 : 392,712.60 = 230,898.80 : x
  2. Step 2: Convert to fraction form
    262,391.60/392,712.60 = 230,898.80/x
  3. Step 3: Cross multiply
    262,391.60x = 392,712.60 × 230,898.80
  4. Step 4: Simplify right side
    262,391.60x = 90,676,868,084.88
  5. Step 5: Solve for x
    x = 90,676,868,084.88/262,391.60
  6. Step 6: Final answer
    x = 345,578.40

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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.