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Finding the Fourth Proportional to 291,886.40, 437,829.60 and 167,124.80

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Solution

The fourth proportional to 291,886.40, 437,829.60 and 167,124.80 is: 250,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,886.40 : 437,829.60 = 167,124.80 : x
  2. Step 2: Convert to fraction form
    291,886.40/437,829.60 = 167,124.80/x
  3. Step 3: Cross multiply
    291,886.40x = 437,829.60 × 167,124.80
  4. Step 4: Simplify right side
    291,886.40x = 73,172,184,334.08
  5. Step 5: Solve for x
    x = 73,172,184,334.08/291,886.40
  6. Step 6: Final answer
    x = 250,687.20

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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.