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Finding the Fourth Proportional to 425,534.40, 637,758.90 and 225,950.40

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Solution

The fourth proportional to 425,534.40, 637,758.90 and 225,950.40 is: 338,637.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,534.40 : 637,758.90 = 225,950.40 : x
  2. Step 2: Convert to fraction form
    425,534.40/637,758.90 = 225,950.40/x
  3. Step 3: Cross multiply
    425,534.40x = 637,758.90 × 225,950.40
  4. Step 4: Simplify right side
    425,534.40x = 144,101,878,558.56
  5. Step 5: Solve for x
    x = 144,101,878,558.56/425,534.40
  6. Step 6: Final answer
    x = 338,637.44

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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.