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Finding the Fourth Proportional to 439,735.40, 659,603.10 and 173,407.40

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Solution

The fourth proportional to 439,735.40, 659,603.10 and 173,407.40 is: 260,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,735.40 : 659,603.10 = 173,407.40 : x
  2. Step 2: Convert to fraction form
    439,735.40/659,603.10 = 173,407.40/x
  3. Step 3: Cross multiply
    439,735.40x = 659,603.10 × 173,407.40
  4. Step 4: Simplify right side
    439,735.40x = 114,380,058,602.94
  5. Step 5: Solve for x
    x = 114,380,058,602.94/439,735.40
  6. Step 6: Final answer
    x = 260,111.10

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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.