Home / 356,611.03-492,173.69-220,688.76

Finding the Fourth Proportional to 356,611.03, 492,173.69 and 220,688.76

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Solution

The fourth proportional to 356,611.03, 492,173.69 and 220,688.76 is: 304,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,611.03 : 492,173.69 = 220,688.76 : x
  2. Step 2: Convert to fraction form
    356,611.03/492,173.69 = 220,688.76/x
  3. Step 3: Cross multiply
    356,611.03x = 492,173.69 × 220,688.76
  4. Step 4: Simplify right side
    356,611.03x = 108,617,201,350.72
  5. Step 5: Solve for x
    x = 108,617,201,350.72/356,611.03
  6. Step 6: Final answer
    x = 304,581.72

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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.