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Finding the Fourth Proportional to 291,348.66, 402,174 and 227,706.96

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Solution

The fourth proportional to 291,348.66, 402,174 and 227,706.96 is: 314,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,348.66 : 402,174 = 227,706.96 : x
  2. Step 2: Convert to fraction form
    291,348.66/402,174 = 227,706.96/x
  3. Step 3: Cross multiply
    291,348.66x = 402,174 × 227,706.96
  4. Step 4: Simplify right side
    291,348.66x = 91,577,818,931.04
  5. Step 5: Solve for x
    x = 91,577,818,931.04/291,348.66
  6. Step 6: Final answer
    x = 314,323.80

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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.