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Finding the Fourth Proportional to 372,678.57, 514,342.71 and 211,585.77

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Solution

The fourth proportional to 372,678.57, 514,342.71 and 211,585.77 is: 292,014.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,678.57 : 514,342.71 = 211,585.77 : x
  2. Step 2: Convert to fraction form
    372,678.57/514,342.71 = 211,585.77/x
  3. Step 3: Cross multiply
    372,678.57x = 514,342.71 × 211,585.77
  4. Step 4: Simplify right side
    372,678.57x = 108,827,598,339.24
  5. Step 5: Solve for x
    x = 108,827,598,339.24/372,678.57
  6. Step 6: Final answer
    x = 292,014.64

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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.