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Finding the Fourth Proportional to 270,756, 373,670.88 and 156,038.76

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Solution

The fourth proportional to 270,756, 373,670.88 and 156,038.76 is: 215,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,756 : 373,670.88 = 156,038.76 : x
  2. Step 2: Convert to fraction form
    270,756/373,670.88 = 156,038.76/x
  3. Step 3: Cross multiply
    270,756x = 373,670.88 × 156,038.76
  4. Step 4: Simplify right side
    270,756x = 58,307,140,763.31
  5. Step 5: Solve for x
    x = 58,307,140,763.31/270,756
  6. Step 6: Final answer
    x = 215,349.39

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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.