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Finding the Fourth Proportional to 291,575.40, 436,196.70 and 252,565.80

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Solution

The fourth proportional to 291,575.40, 436,196.70 and 252,565.80 is: 377,838.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,575.40 : 436,196.70 = 252,565.80 : x
  2. Step 2: Convert to fraction form
    291,575.40/436,196.70 = 252,565.80/x
  3. Step 3: Cross multiply
    291,575.40x = 436,196.70 × 252,565.80
  4. Step 4: Simplify right side
    291,575.40x = 110,168,368,492.86
  5. Step 5: Solve for x
    x = 110,168,368,492.86/291,575.40
  6. Step 6: Final answer
    x = 377,838.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.