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Finding the Fourth Proportional to 291,878.90, 437,818.35 and 167,117.30

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Solution

The fourth proportional to 291,878.90, 437,818.35 and 167,117.30 is: 250,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,878.90 : 437,818.35 = 167,117.30 : x
  2. Step 2: Convert to fraction form
    291,878.90/437,818.35 = 167,117.30/x
  3. Step 3: Cross multiply
    291,878.90x = 437,818.35 × 167,117.30
  4. Step 4: Simplify right side
    291,878.90x = 73,167,020,542.46
  5. Step 5: Solve for x
    x = 73,167,020,542.46/291,878.90
  6. Step 6: Final answer
    x = 250,675.95

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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.