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Finding the Fourth Proportional to 316,933.80, 437,174.30 and 258,874.89

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Solution

The fourth proportional to 316,933.80, 437,174.30 and 258,874.89 is: 357,088.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,933.80 : 437,174.30 = 258,874.89 : x
  2. Step 2: Convert to fraction form
    316,933.80/437,174.30 = 258,874.89/x
  3. Step 3: Cross multiply
    316,933.80x = 437,174.30 × 258,874.89
  4. Step 4: Simplify right side
    316,933.80x = 113,173,447,528.95
  5. Step 5: Solve for x
    x = 113,173,447,528.95/316,933.80
  6. Step 6: Final answer
    x = 357,088.60

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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.