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Finding the Fourth Proportional to 291,267.80, 436,901.70 and 113,780.60

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Solution

The fourth proportional to 291,267.80, 436,901.70 and 113,780.60 is: 170,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,267.80 : 436,901.70 = 113,780.60 : x
  2. Step 2: Convert to fraction form
    291,267.80/436,901.70 = 113,780.60/x
  3. Step 3: Cross multiply
    291,267.80x = 436,901.70 × 113,780.60
  4. Step 4: Simplify right side
    291,267.80x = 49,710,937,567.02
  5. Step 5: Solve for x
    x = 49,710,937,567.02/291,267.80
  6. Step 6: Final answer
    x = 170,670.90

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1.5x scale

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.