Home / 389,433.13-537,417.78-210,585.13

Finding the Fourth Proportional to 389,433.13, 537,417.78 and 210,585.13

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Solution

The fourth proportional to 389,433.13, 537,417.78 and 210,585.13 is: 290,607.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,433.13 : 537,417.78 = 210,585.13 : x
  2. Step 2: Convert to fraction form
    389,433.13/537,417.78 = 210,585.13/x
  3. Step 3: Cross multiply
    389,433.13x = 537,417.78 × 210,585.13
  4. Step 4: Simplify right side
    389,433.13x = 113,172,193,065.61
  5. Step 5: Solve for x
    x = 113,172,193,065.61/389,433.13
  6. Step 6: Final answer
    x = 290,607.51

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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.