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Finding the Fourth Proportional to 316,522.05, 436,835.52 and 180,589.50

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Solution

The fourth proportional to 316,522.05, 436,835.52 and 180,589.50 is: 249,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,522.05 : 436,835.52 = 180,589.50 : x
  2. Step 2: Convert to fraction form
    316,522.05/436,835.52 = 180,589.50/x
  3. Step 3: Cross multiply
    316,522.05x = 436,835.52 × 180,589.50
  4. Step 4: Simplify right side
    316,522.05x = 78,887,908,139.04
  5. Step 5: Solve for x
    x = 78,887,908,139.04/316,522.05
  6. Step 6: Final answer
    x = 249,233.53

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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.