Home / 371,701.16-512,937.63-218,748.36

Finding the Fourth Proportional to 371,701.16, 512,937.63 and 218,748.36

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Solution

The fourth proportional to 371,701.16, 512,937.63 and 218,748.36 is: 301,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,701.16 : 512,937.63 = 218,748.36 : x
  2. Step 2: Convert to fraction form
    371,701.16/512,937.63 = 218,748.36/x
  3. Step 3: Cross multiply
    371,701.16x = 512,937.63 × 218,748.36
  4. Step 4: Simplify right side
    371,701.16x = 112,204,265,344.79
  5. Step 5: Solve for x
    x = 112,204,265,344.79/371,701.16
  6. Step 6: Final answer
    x = 301,866.87

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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.