Home / 424,865.51-637,394.28-140,555.39

Finding the Fourth Proportional to 424,865.51, 637,394.28 and 140,555.39

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Solution

The fourth proportional to 424,865.51, 637,394.28 and 140,555.39 is: 210,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,865.51 : 637,394.28 = 140,555.39 : x
  2. Step 2: Convert to fraction form
    424,865.51/637,394.28 = 140,555.39/x
  3. Step 3: Cross multiply
    424,865.51x = 637,394.28 × 140,555.39
  4. Step 4: Simplify right side
    424,865.51x = 89,589,203,202.65
  5. Step 5: Solve for x
    x = 89,589,203,202.65/424,865.51
  6. Step 6: Final answer
    x = 210,864.85

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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.