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Finding the Fourth Proportional to 205,032.60, 307,779.30 and 158,491.80

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Solution

The fourth proportional to 205,032.60, 307,779.30 and 158,491.80 is: 237,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,032.60 : 307,779.30 = 158,491.80 : x
  2. Step 2: Convert to fraction form
    205,032.60/307,779.30 = 158,491.80/x
  3. Step 3: Cross multiply
    205,032.60x = 307,779.30 × 158,491.80
  4. Step 4: Simplify right side
    205,032.60x = 48,780,495,259.74
  5. Step 5: Solve for x
    x = 48,780,495,259.74/205,032.60
  6. Step 6: Final answer
    x = 237,915.80

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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.