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Finding the Fourth Proportional to 310,871.47, 429,018.38 and 183,544.33

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Solution

The fourth proportional to 310,871.47, 429,018.38 and 183,544.33 is: 253,300.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,871.47 : 429,018.38 = 183,544.33 : x
  2. Step 2: Convert to fraction form
    310,871.47/429,018.38 = 183,544.33/x
  3. Step 3: Cross multiply
    310,871.47x = 429,018.38 × 183,544.33
  4. Step 4: Simplify right side
    310,871.47x = 78,743,891,114.79
  5. Step 5: Solve for x
    x = 78,743,891,114.79/310,871.47
  6. Step 6: Final answer
    x = 253,300.48

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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.