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Finding the Fourth Proportional to 354,033, 488,585.70 and 266,661.48

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Solution

The fourth proportional to 354,033, 488,585.70 and 266,661.48 is: 368,008.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,033 : 488,585.70 = 266,661.48 : x
  2. Step 2: Convert to fraction form
    354,033/488,585.70 = 266,661.48/x
  3. Step 3: Cross multiply
    354,033x = 488,585.70 × 266,661.48
  4. Step 4: Simplify right side
    354,033x = 130,286,985,868.84
  5. Step 5: Solve for x
    x = 130,286,985,868.84/354,033
  6. Step 6: Final answer
    x = 368,008.03

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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.