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Finding the Fourth Proportional to 220,710.76, 304,613.64 and 130,037.74

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Solution

The fourth proportional to 220,710.76, 304,613.64 and 130,037.74 is: 179,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,710.76 : 304,613.64 = 130,037.74 : x
  2. Step 2: Convert to fraction form
    220,710.76/304,613.64 = 130,037.74/x
  3. Step 3: Cross multiply
    220,710.76x = 304,613.64 × 130,037.74
  4. Step 4: Simplify right side
    220,710.76x = 39,611,269,318.77
  5. Step 5: Solve for x
    x = 39,611,269,318.77/220,710.76
  6. Step 6: Final answer
    x = 179,471.40

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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.