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Finding the Fourth Proportional to 305,520.42, 458,253.71 and 136,995.51

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Solution

The fourth proportional to 305,520.42, 458,253.71 and 136,995.51 is: 205,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,520.42 : 458,253.71 = 136,995.51 : x
  2. Step 2: Convert to fraction form
    305,520.42/458,253.71 = 136,995.51/x
  3. Step 3: Cross multiply
    305,520.42x = 458,253.71 × 136,995.51
  4. Step 4: Simplify right side
    305,520.42x = 62,778,701,744.32
  5. Step 5: Solve for x
    x = 62,778,701,744.32/305,520.42
  6. Step 6: Final answer
    x = 205,481.20

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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.