Home / 389,260.56-537,179.28-210,412.56

Finding the Fourth Proportional to 389,260.56, 537,179.28 and 210,412.56

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Solution

The fourth proportional to 389,260.56, 537,179.28 and 210,412.56 is: 290,369.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,260.56 : 537,179.28 = 210,412.56 : x
  2. Step 2: Convert to fraction form
    389,260.56/537,179.28 = 210,412.56/x
  3. Step 3: Cross multiply
    389,260.56x = 537,179.28 × 210,412.56
  4. Step 4: Simplify right side
    389,260.56x = 113,029,267,483.76
  5. Step 5: Solve for x
    x = 113,029,267,483.76/389,260.56
  6. Step 6: Final answer
    x = 290,369.17

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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.