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Finding the Fourth Proportional to 346,145.40, 519,045.30 and 158,945.40

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Solution

The fourth proportional to 346,145.40, 519,045.30 and 158,945.40 is: 238,338.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,145.40 : 519,045.30 = 158,945.40 : x
  2. Step 2: Convert to fraction form
    346,145.40/519,045.30 = 158,945.40/x
  3. Step 3: Cross multiply
    346,145.40x = 519,045.30 × 158,945.40
  4. Step 4: Simplify right side
    346,145.40x = 82,499,862,826.62
  5. Step 5: Solve for x
    x = 82,499,862,826.62/346,145.40
  6. Step 6: Final answer
    x = 238,338.75

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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.