Home / 309,830.79-464,746.20-99,616.35

Finding the Fourth Proportional to 309,830.79, 464,746.20 and 99,616.35

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Solution

The fourth proportional to 309,830.79, 464,746.20 and 99,616.35 is: 149,424.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,830.79 : 464,746.20 = 99,616.35 : x
  2. Step 2: Convert to fraction form
    309,830.79/464,746.20 = 99,616.35/x
  3. Step 3: Cross multiply
    309,830.79x = 464,746.20 × 99,616.35
  4. Step 4: Simplify right side
    309,830.79x = 46,296,320,120.37
  5. Step 5: Solve for x
    x = 46,296,320,120.37/309,830.79
  6. Step 6: Final answer
    x = 149,424.53

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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.