Home / 290,342.10-436,031.55-211,545.30

Finding the Fourth Proportional to 290,342.10, 436,031.55 and 211,545.30

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Solution

The fourth proportional to 290,342.10, 436,031.55 and 211,545.30 is: 317,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,342.10 : 436,031.55 = 211,545.30 : x
  2. Step 2: Convert to fraction form
    290,342.10/436,031.55 = 211,545.30/x
  3. Step 3: Cross multiply
    290,342.10x = 436,031.55 × 211,545.30
  4. Step 4: Simplify right side
    290,342.10x = 92,240,425,054.22
  5. Step 5: Solve for x
    x = 92,240,425,054.22/290,342.10
  6. Step 6: Final answer
    x = 317,695.66

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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.