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Finding the Fourth Proportional to 370,042.48, 510,878.64 and 242,940.88

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Solution

The fourth proportional to 370,042.48, 510,878.64 and 242,940.88 is: 335,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,042.48 : 510,878.64 = 242,940.88 : x
  2. Step 2: Convert to fraction form
    370,042.48/510,878.64 = 242,940.88/x
  3. Step 3: Cross multiply
    370,042.48x = 510,878.64 × 242,940.88
  4. Step 4: Simplify right side
    370,042.48x = 124,113,306,374.80
  5. Step 5: Solve for x
    x = 124,113,306,374.80/370,042.48
  6. Step 6: Final answer
    x = 335,402.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.