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Finding the Fourth Proportional to 374,386.70, 517,079.82 and 251,666.00

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Solution

The fourth proportional to 374,386.70, 517,079.82 and 251,666.00 is: 347,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,386.70 : 517,079.82 = 251,666.00 : x
  2. Step 2: Convert to fraction form
    374,386.70/517,079.82 = 251,666.00/x
  3. Step 3: Cross multiply
    374,386.70x = 517,079.82 × 251,666.00
  4. Step 4: Simplify right side
    374,386.70x = 130,131,407,394.72
  5. Step 5: Solve for x
    x = 130,131,407,394.72/374,386.70
  6. Step 6: Final answer
    x = 347,585.55

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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.