Home / 288,386.04-431,998.98-143,856.12

Finding the Fourth Proportional to 288,386.04, 431,998.98 and 143,856.12

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Solution

The fourth proportional to 288,386.04, 431,998.98 and 143,856.12 is: 215,494.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,386.04 : 431,998.98 = 143,856.12 : x
  2. Step 2: Convert to fraction form
    288,386.04/431,998.98 = 143,856.12/x
  3. Step 3: Cross multiply
    288,386.04x = 431,998.98 × 143,856.12
  4. Step 4: Simplify right side
    288,386.04x = 62,145,697,106.76
  5. Step 5: Solve for x
    x = 62,145,697,106.76/288,386.04
  6. Step 6: Final answer
    x = 215,494.82

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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.