Home / 216,386.86-298,628.01-143,675.91

Finding the Fourth Proportional to 216,386.86, 298,628.01 and 143,675.91

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Solution

The fourth proportional to 216,386.86, 298,628.01 and 143,675.91 is: 198,282.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,386.86 : 298,628.01 = 143,675.91 : x
  2. Step 2: Convert to fraction form
    216,386.86/298,628.01 = 143,675.91/x
  3. Step 3: Cross multiply
    216,386.86x = 298,628.01 × 143,675.91
  4. Step 4: Simplify right side
    216,386.86x = 42,905,651,170.99
  5. Step 5: Solve for x
    x = 42,905,651,170.99/216,386.86
  6. Step 6: Final answer
    x = 198,282.14

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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.