Home / 288,870.46-433,218.20-78,481.06

Finding the Fourth Proportional to 288,870.46, 433,218.20 and 78,481.06

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Solution

The fourth proportional to 288,870.46, 433,218.20 and 78,481.06 is: 117,697.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,870.46 : 433,218.20 = 78,481.06 : x
  2. Step 2: Convert to fraction form
    288,870.46/433,218.20 = 78,481.06/x
  3. Step 3: Cross multiply
    288,870.46x = 433,218.20 × 78,481.06
  4. Step 4: Simplify right side
    288,870.46x = 33,999,423,547.29
  5. Step 5: Solve for x
    x = 33,999,423,547.29/288,870.46
  6. Step 6: Final answer
    x = 117,697.82

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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.