Home / 307,925.03-425,124.15-211,287.65

Finding the Fourth Proportional to 307,925.03, 425,124.15 and 211,287.65

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Solution

The fourth proportional to 307,925.03, 425,124.15 and 211,287.65 is: 291,705.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,925.03 : 425,124.15 = 211,287.65 : x
  2. Step 2: Convert to fraction form
    307,925.03/425,124.15 = 211,287.65/x
  3. Step 3: Cross multiply
    307,925.03x = 425,124.15 × 211,287.65
  4. Step 4: Simplify right side
    307,925.03x = 89,823,482,611.75
  5. Step 5: Solve for x
    x = 89,823,482,611.75/307,925.03
  6. Step 6: Final answer
    x = 291,705.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.