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Finding the Fourth Proportional to 346,785.09, 520,282.53 and 245,778.51

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Solution

The fourth proportional to 346,785.09, 520,282.53 and 245,778.51 is: 368,742.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,785.09 : 520,282.53 = 245,778.51 : x
  2. Step 2: Convert to fraction form
    346,785.09/520,282.53 = 245,778.51/x
  3. Step 3: Cross multiply
    346,785.09x = 520,282.53 × 245,778.51
  4. Step 4: Simplify right side
    346,785.09x = 127,874,265,002.43
  5. Step 5: Solve for x
    x = 127,874,265,002.43/346,785.09
  6. Step 6: Final answer
    x = 368,742.11

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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.