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Finding the Fourth Proportional to 258,703.01, 388,304.76 and 186,730.11

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Solution

The fourth proportional to 258,703.01, 388,304.76 and 186,730.11 is: 280,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,703.01 : 388,304.76 = 186,730.11 : x
  2. Step 2: Convert to fraction form
    258,703.01/388,304.76 = 186,730.11/x
  3. Step 3: Cross multiply
    258,703.01x = 388,304.76 × 186,730.11
  4. Step 4: Simplify right side
    258,703.01x = 72,508,190,548.32
  5. Step 5: Solve for x
    x = 72,508,190,548.32/258,703.01
  6. Step 6: Final answer
    x = 280,275.80

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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.