Home / 309,038.06-426,488.28-173,064.04

Finding the Fourth Proportional to 309,038.06, 426,488.28 and 173,064.04

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Solution

The fourth proportional to 309,038.06, 426,488.28 and 173,064.04 is: 238,837.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,038.06 : 426,488.28 = 173,064.04 : x
  2. Step 2: Convert to fraction form
    309,038.06/426,488.28 = 173,064.04/x
  3. Step 3: Cross multiply
    309,038.06x = 426,488.28 × 173,064.04
  4. Step 4: Simplify right side
    309,038.06x = 73,809,784,749.45
  5. Step 5: Solve for x
    x = 73,809,784,749.45/309,038.06
  6. Step 6: Final answer
    x = 238,837.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.