Home / 370,128.35-510,780.65-217,169.15

Finding the Fourth Proportional to 370,128.35, 510,780.65 and 217,169.15

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Solution

The fourth proportional to 370,128.35, 510,780.65 and 217,169.15 is: 299,695.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,128.35 : 510,780.65 = 217,169.15 : x
  2. Step 2: Convert to fraction form
    370,128.35/510,780.65 = 217,169.15/x
  3. Step 3: Cross multiply
    370,128.35x = 510,780.65 × 217,169.15
  4. Step 4: Simplify right side
    370,128.35x = 110,925,798,511.10
  5. Step 5: Solve for x
    x = 110,925,798,511.10/370,128.35
  6. Step 6: Final answer
    x = 299,695.49

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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.