Home / 425,324.72-638,085.84-144,844.40

Finding the Fourth Proportional to 425,324.72, 638,085.84 and 144,844.40

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Solution

The fourth proportional to 425,324.72, 638,085.84 and 144,844.40 is: 217,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,324.72 : 638,085.84 = 144,844.40 : x
  2. Step 2: Convert to fraction form
    425,324.72/638,085.84 = 144,844.40/x
  3. Step 3: Cross multiply
    425,324.72x = 638,085.84 × 144,844.40
  4. Step 4: Simplify right side
    425,324.72x = 92,423,160,643.30
  5. Step 5: Solve for x
    x = 92,423,160,643.30/425,324.72
  6. Step 6: Final answer
    x = 217,300.23

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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.