Home / 280,139.68-386,595.54-152,817.94

Finding the Fourth Proportional to 280,139.68, 386,595.54 and 152,817.94

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Solution

The fourth proportional to 280,139.68, 386,595.54 and 152,817.94 is: 210,890.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,139.68 : 386,595.54 = 152,817.94 : x
  2. Step 2: Convert to fraction form
    280,139.68/386,595.54 = 152,817.94/x
  3. Step 3: Cross multiply
    280,139.68x = 386,595.54 × 152,817.94
  4. Step 4: Simplify right side
    280,139.68x = 59,078,734,035.99
  5. Step 5: Solve for x
    x = 59,078,734,035.99/280,139.68
  6. Step 6: Final answer
    x = 210,890.27

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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.