Home / 312,277.17-468,345.67-143,635.51

Finding the Fourth Proportional to 312,277.17, 468,345.67 and 143,635.51

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Solution

The fourth proportional to 312,277.17, 468,345.67 and 143,635.51 is: 215,421.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,277.17 : 468,345.67 = 143,635.51 : x
  2. Step 2: Convert to fraction form
    312,277.17/468,345.67 = 143,635.51/x
  3. Step 3: Cross multiply
    312,277.17x = 468,345.67 × 143,635.51
  4. Step 4: Simplify right side
    312,277.17x = 67,271,069,166.74
  5. Step 5: Solve for x
    x = 67,271,069,166.74/312,277.17
  6. Step 6: Final answer
    x = 215,421.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.