Home / 304,427.10-456,640.65-138,215.10

Finding the Fourth Proportional to 304,427.10, 456,640.65 and 138,215.10

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Solution

The fourth proportional to 304,427.10, 456,640.65 and 138,215.10 is: 207,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,427.10 : 456,640.65 = 138,215.10 : x
  2. Step 2: Convert to fraction form
    304,427.10/456,640.65 = 138,215.10/x
  3. Step 3: Cross multiply
    304,427.10x = 456,640.65 × 138,215.10
  4. Step 4: Simplify right side
    304,427.10x = 63,114,633,103.82
  5. Step 5: Solve for x
    x = 63,114,633,103.82/304,427.10
  6. Step 6: Final answer
    x = 207,322.65

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1.5x scale

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.