Home / 389,432.13-537,416.40-210,584.13

Finding the Fourth Proportional to 389,432.13, 537,416.40 and 210,584.13

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Solution

The fourth proportional to 389,432.13, 537,416.40 and 210,584.13 is: 290,606.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,432.13 : 537,416.40 = 210,584.13 : x
  2. Step 2: Convert to fraction form
    389,432.13/537,416.40 = 210,584.13/x
  3. Step 3: Cross multiply
    389,432.13x = 537,416.40 × 210,584.13
  4. Step 4: Simplify right side
    389,432.13x = 113,171,365,041.73
  5. Step 5: Solve for x
    x = 113,171,365,041.73/389,432.13
  6. Step 6: Final answer
    x = 290,606.13

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1.5x scale

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.