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Finding the Fourth Proportional to 191,480.56, 264,240.95 and 105,437.76

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Solution

The fourth proportional to 191,480.56, 264,240.95 and 105,437.76 is: 145,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,480.56 : 264,240.95 = 105,437.76 : x
  2. Step 2: Convert to fraction form
    191,480.56/264,240.95 = 105,437.76/x
  3. Step 3: Cross multiply
    191,480.56x = 264,240.95 × 105,437.76
  4. Step 4: Simplify right side
    191,480.56x = 27,860,972,943.27
  5. Step 5: Solve for x
    x = 27,860,972,943.27/191,480.56
  6. Step 6: Final answer
    x = 145,502.88

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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.