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Finding the Fourth Proportional to 316,560.84, 436,895.55 and 180,563.64

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Solution

The fourth proportional to 316,560.84, 436,895.55 and 180,563.64 is: 249,201.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,560.84 : 436,895.55 = 180,563.64 : x
  2. Step 2: Convert to fraction form
    316,560.84/436,895.55 = 180,563.64/x
  3. Step 3: Cross multiply
    316,560.84x = 436,895.55 × 180,563.64
  4. Step 4: Simplify right side
    316,560.84x = 78,887,450,807.80
  5. Step 5: Solve for x
    x = 78,887,450,807.80/316,560.84
  6. Step 6: Final answer
    x = 249,201.55

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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.