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Finding the Fourth Proportional to 543,547.94, 815,291.92 and 223,618.84

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Solution

The fourth proportional to 543,547.94, 815,291.92 and 223,618.84 is: 335,415.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,547.94 : 815,291.92 = 223,618.84 : x
  2. Step 2: Convert to fraction form
    543,547.94/815,291.92 = 223,618.84/x
  3. Step 3: Cross multiply
    543,547.94x = 815,291.92 × 223,618.84
  4. Step 4: Simplify right side
    543,547.94x = 182,314,634,430.89
  5. Step 5: Solve for x
    x = 182,314,634,430.89/543,547.94
  6. Step 6: Final answer
    x = 335,415.93

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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.