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Finding the Fourth Proportional to 425,455.36, 637,581.28 and 235,999.20

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Solution

The fourth proportional to 425,455.36, 637,581.28 and 235,999.20 is: 353,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,455.36 : 637,581.28 = 235,999.20 : x
  2. Step 2: Convert to fraction form
    425,455.36/637,581.28 = 235,999.20/x
  3. Step 3: Cross multiply
    425,455.36x = 637,581.28 × 235,999.20
  4. Step 4: Simplify right side
    425,455.36x = 150,468,672,014.98
  5. Step 5: Solve for x
    x = 150,468,672,014.98/425,455.36
  6. Step 6: Final answer
    x = 353,665.00

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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.