Home / 430,318.84-645,499.28-164,029.72

Finding the Fourth Proportional to 430,318.84, 645,499.28 and 164,029.72

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Solution

The fourth proportional to 430,318.84, 645,499.28 and 164,029.72 is: 246,052.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,318.84 : 645,499.28 = 164,029.72 : x
  2. Step 2: Convert to fraction form
    430,318.84/645,499.28 = 164,029.72/x
  3. Step 3: Cross multiply
    430,318.84x = 645,499.28 × 164,029.72
  4. Step 4: Simplify right side
    430,318.84x = 105,881,065,338.45
  5. Step 5: Solve for x
    x = 105,881,065,338.45/430,318.84
  6. Step 6: Final answer
    x = 246,052.59

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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.