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Finding the Fourth Proportional to 302,505.76, 417,637.65 and 268,875.64

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Solution

The fourth proportional to 302,505.76, 417,637.65 and 268,875.64 is: 371,208.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,505.76 : 417,637.65 = 268,875.64 : x
  2. Step 2: Convert to fraction form
    302,505.76/417,637.65 = 268,875.64/x
  3. Step 3: Cross multiply
    302,505.76x = 417,637.65 × 268,875.64
  4. Step 4: Simplify right side
    302,505.76x = 112,292,590,431.85
  5. Step 5: Solve for x
    x = 112,292,590,431.85/302,505.76
  6. Step 6: Final answer
    x = 371,208.11

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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.