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Finding the Fourth Proportional to 298,792.80, 448,444.35 and 121,427.10

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Solution

The fourth proportional to 298,792.80, 448,444.35 and 121,427.10 is: 182,244.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,792.80 : 448,444.35 = 121,427.10 : x
  2. Step 2: Convert to fraction form
    298,792.80/448,444.35 = 121,427.10/x
  3. Step 3: Cross multiply
    298,792.80x = 448,444.35 × 121,427.10
  4. Step 4: Simplify right side
    298,792.80x = 54,453,296,931.89
  5. Step 5: Solve for x
    x = 54,453,296,931.89/298,792.80
  6. Step 6: Final answer
    x = 182,244.34

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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.