Home / 346,717.51-520,214.21-133,428.15

Finding the Fourth Proportional to 346,717.51, 520,214.21 and 133,428.15

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Solution

The fourth proportional to 346,717.51, 520,214.21 and 133,428.15 is: 200,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,717.51 : 520,214.21 = 133,428.15 : x
  2. Step 2: Convert to fraction form
    346,717.51/520,214.21 = 133,428.15/x
  3. Step 3: Cross multiply
    346,717.51x = 520,214.21 × 133,428.15
  4. Step 4: Simplify right side
    346,717.51x = 69,411,219,977.58
  5. Step 5: Solve for x
    x = 69,411,219,977.58/346,717.51
  6. Step 6: Final answer
    x = 200,195.31

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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.