Home / 251,218.35-346,677.39-138,038.67

Finding the Fourth Proportional to 251,218.35, 346,677.39 and 138,038.67

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Solution

The fourth proportional to 251,218.35, 346,677.39 and 138,038.67 is: 190,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,218.35 : 346,677.39 = 138,038.67 : x
  2. Step 2: Convert to fraction form
    251,218.35/346,677.39 = 138,038.67/x
  3. Step 3: Cross multiply
    251,218.35x = 346,677.39 × 138,038.67
  4. Step 4: Simplify right side
    251,218.35x = 47,854,885,834.67
  5. Step 5: Solve for x
    x = 47,854,885,834.67/251,218.35
  6. Step 6: Final answer
    x = 190,491.20

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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.