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Finding the Fourth Proportional to 359,731.60, 540,072.60 and 288,693.52

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Solution

The fourth proportional to 359,731.60, 540,072.60 and 288,693.52 is: 433,421.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,731.60 : 540,072.60 = 288,693.52 : x
  2. Step 2: Convert to fraction form
    359,731.60/540,072.60 = 288,693.52/x
  3. Step 3: Cross multiply
    359,731.60x = 540,072.60 × 288,693.52
  4. Step 4: Simplify right side
    359,731.60x = 155,915,459,949.55
  5. Step 5: Solve for x
    x = 155,915,459,949.55/359,731.60
  6. Step 6: Final answer
    x = 433,421.64

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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.