Home / 346,923.72-520,582.43-136,709.28

Finding the Fourth Proportional to 346,923.72, 520,582.43 and 136,709.28

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Solution

The fourth proportional to 346,923.72, 520,582.43 and 136,709.28 is: 205,141.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,923.72 : 520,582.43 = 136,709.28 : x
  2. Step 2: Convert to fraction form
    346,923.72/520,582.43 = 136,709.28/x
  3. Step 3: Cross multiply
    346,923.72x = 520,582.43 × 136,709.28
  4. Step 4: Simplify right side
    346,923.72x = 71,168,449,527.72
  5. Step 5: Solve for x
    x = 71,168,449,527.72/346,923.72
  6. Step 6: Final answer
    x = 205,141.49

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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.