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Finding the Fourth Proportional to 253,779.61, 380,254.13 and 153,636.27

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Solution

The fourth proportional to 253,779.61, 380,254.13 and 153,636.27 is: 230,203.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,779.61 : 380,254.13 = 153,636.27 : x
  2. Step 2: Convert to fraction form
    253,779.61/380,254.13 = 153,636.27/x
  3. Step 3: Cross multiply
    253,779.61x = 380,254.13 × 153,636.27
  4. Step 4: Simplify right side
    253,779.61x = 58,420,827,520.02
  5. Step 5: Solve for x
    x = 58,420,827,520.02/253,779.61
  6. Step 6: Final answer
    x = 230,203.00

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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.