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Finding the Fourth Proportional to 186,740.80, 280,068.48 and 53,620

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Solution

The fourth proportional to 186,740.80, 280,068.48 and 53,620 is: 80,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,740.80 : 280,068.48 = 53,620 : x
  2. Step 2: Convert to fraction form
    186,740.80/280,068.48 = 53,620/x
  3. Step 3: Cross multiply
    186,740.80x = 280,068.48 × 53,620
  4. Step 4: Simplify right side
    186,740.80x = 15,017,271,897.60
  5. Step 5: Solve for x
    x = 15,017,271,897.60/186,740.80
  6. Step 6: Final answer
    x = 80,417.73

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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.