Home / 370,139.49-510,761.43-217,161.57

Finding the Fourth Proportional to 370,139.49, 510,761.43 and 217,161.57

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Solution

The fourth proportional to 370,139.49, 510,761.43 and 217,161.57 is: 299,664.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,139.49 : 510,761.43 = 217,161.57 : x
  2. Step 2: Convert to fraction form
    370,139.49/510,761.43 = 217,161.57/x
  3. Step 3: Cross multiply
    370,139.49x = 510,761.43 × 217,161.57
  4. Step 4: Simplify right side
    370,139.49x = 110,917,754,034.25
  5. Step 5: Solve for x
    x = 110,917,754,034.25/370,139.49
  6. Step 6: Final answer
    x = 299,664.74

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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.