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Finding the Fourth Proportional to 425,148.79, 637,759.91 and 109,603.03

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Solution

The fourth proportional to 425,148.79, 637,759.91 and 109,603.03 is: 164,414.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,148.79 : 637,759.91 = 109,603.03 : x
  2. Step 2: Convert to fraction form
    425,148.79/637,759.91 = 109,603.03/x
  3. Step 3: Cross multiply
    425,148.79x = 637,759.91 × 109,603.03
  4. Step 4: Simplify right side
    425,148.79x = 69,900,418,000.51
  5. Step 5: Solve for x
    x = 69,900,418,000.51/425,148.79
  6. Step 6: Final answer
    x = 164,414.01

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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.