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Finding the Fourth Proportional to 425,168.39, 637,987.05 and 235,603.65

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Solution

The fourth proportional to 425,168.39, 637,987.05 and 235,603.65 is: 353,535.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,168.39 : 637,987.05 = 235,603.65 : x
  2. Step 2: Convert to fraction form
    425,168.39/637,987.05 = 235,603.65/x
  3. Step 3: Cross multiply
    425,168.39x = 637,987.05 × 235,603.65
  4. Step 4: Simplify right side
    425,168.39x = 150,312,080,025.18
  5. Step 5: Solve for x
    x = 150,312,080,025.18/425,168.39
  6. Step 6: Final answer
    x = 353,535.41

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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.