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Finding the Fourth Proportional to 344,781.51, 475,864.01 and 215,779.95

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Solution

The fourth proportional to 344,781.51, 475,864.01 and 215,779.95 is: 297,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,781.51 : 475,864.01 = 215,779.95 : x
  2. Step 2: Convert to fraction form
    344,781.51/475,864.01 = 215,779.95/x
  3. Step 3: Cross multiply
    344,781.51x = 475,864.01 × 215,779.95
  4. Step 4: Simplify right side
    344,781.51x = 102,681,913,228.64
  5. Step 5: Solve for x
    x = 102,681,913,228.64/344,781.51
  6. Step 6: Final answer
    x = 297,817.34

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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.