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Finding the Fourth Proportional to 302,394.51, 417,304.04 and 187,630.47

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Solution

The fourth proportional to 302,394.51, 417,304.04 and 187,630.47 is: 258,929.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,394.51 : 417,304.04 = 187,630.47 : x
  2. Step 2: Convert to fraction form
    302,394.51/417,304.04 = 187,630.47/x
  3. Step 3: Cross multiply
    302,394.51x = 417,304.04 × 187,630.47
  4. Step 4: Simplify right side
    302,394.51x = 78,298,952,219.95
  5. Step 5: Solve for x
    x = 78,298,952,219.95/302,394.51
  6. Step 6: Final answer
    x = 258,929.81

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1.5x scale

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.