Home / 389,199.86-537,095.49-210,351.86

Finding the Fourth Proportional to 389,199.86, 537,095.49 and 210,351.86

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Solution

The fourth proportional to 389,199.86, 537,095.49 and 210,351.86 is: 290,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,199.86 : 537,095.49 = 210,351.86 : x
  2. Step 2: Convert to fraction form
    389,199.86/537,095.49 = 210,351.86/x
  3. Step 3: Cross multiply
    389,199.86x = 537,095.49 × 210,351.86
  4. Step 4: Simplify right side
    389,199.86x = 112,979,035,319.11
  5. Step 5: Solve for x
    x = 112,979,035,319.11/389,199.86
  6. Step 6: Final answer
    x = 290,285.40

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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.