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Finding the Fourth Proportional to 191,510.73, 264,295.71 and 115,053.21

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Solution

The fourth proportional to 191,510.73, 264,295.71 and 115,053.21 is: 158,779.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,510.73 : 264,295.71 = 115,053.21 : x
  2. Step 2: Convert to fraction form
    191,510.73/264,295.71 = 115,053.21/x
  3. Step 3: Cross multiply
    191,510.73x = 264,295.71 × 115,053.21
  4. Step 4: Simplify right side
    191,510.73x = 30,408,069,824.73
  5. Step 5: Solve for x
    x = 30,408,069,824.73/191,510.73
  6. Step 6: Final answer
    x = 158,779.98

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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.