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Finding the Fourth Proportional to 297,051.17, 445,569.39 and 86,690.93

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Solution

The fourth proportional to 297,051.17, 445,569.39 and 86,690.93 is: 130,034.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,051.17 : 445,569.39 = 86,690.93 : x
  2. Step 2: Convert to fraction form
    297,051.17/445,569.39 = 86,690.93/x
  3. Step 3: Cross multiply
    297,051.17x = 445,569.39 × 86,690.93
  4. Step 4: Simplify right side
    297,051.17x = 38,626,822,570.79
  5. Step 5: Solve for x
    x = 38,626,822,570.79/297,051.17
  6. Step 6: Final answer
    x = 130,034.24

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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.