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Finding the Fourth Proportional to 545,888.50, 753,316.10 and 304,165.87

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Solution

The fourth proportional to 545,888.50, 753,316.10 and 304,165.87 is: 419,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,888.50 : 753,316.10 = 304,165.87 : x
  2. Step 2: Convert to fraction form
    545,888.50/753,316.10 = 304,165.87/x
  3. Step 3: Cross multiply
    545,888.50x = 753,316.10 × 304,165.87
  4. Step 4: Simplify right side
    545,888.50x = 229,133,044,678.01
  5. Step 5: Solve for x
    x = 229,133,044,678.01/545,888.50
  6. Step 6: Final answer
    x = 419,743.31

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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.