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Finding the Fourth Proportional to 298,943.60, 446,510.34 and 270,436.86

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Solution

The fourth proportional to 298,943.60, 446,510.34 and 270,436.86 is: 403,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,943.60 : 446,510.34 = 270,436.86 : x
  2. Step 2: Convert to fraction form
    298,943.60/446,510.34 = 270,436.86/x
  3. Step 3: Cross multiply
    298,943.60x = 446,510.34 × 270,436.86
  4. Step 4: Simplify right side
    298,943.60x = 120,752,854,307.13
  5. Step 5: Solve for x
    x = 120,752,854,307.13/298,943.60
  6. Step 6: Final answer
    x = 403,931.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.