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Finding the Fourth Proportional to 355,569.80, 533,225.10 and 118,920.20

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Solution

The fourth proportional to 355,569.80, 533,225.10 and 118,920.20 is: 178,336.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,569.80 : 533,225.10 = 118,920.20 : x
  2. Step 2: Convert to fraction form
    355,569.80/533,225.10 = 118,920.20/x
  3. Step 3: Cross multiply
    355,569.80x = 533,225.10 × 118,920.20
  4. Step 4: Simplify right side
    355,569.80x = 63,411,235,537.02
  5. Step 5: Solve for x
    x = 63,411,235,537.02/355,569.80
  6. Step 6: Final answer
    x = 178,336.96

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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.