Home / 430,254.05-645,356.43-164,041.47

Finding the Fourth Proportional to 430,254.05, 645,356.43 and 164,041.47

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Solution

The fourth proportional to 430,254.05, 645,356.43 and 164,041.47 is: 246,052.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,254.05 : 645,356.43 = 164,041.47 : x
  2. Step 2: Convert to fraction form
    430,254.05/645,356.43 = 164,041.47/x
  3. Step 3: Cross multiply
    430,254.05x = 645,356.43 × 164,041.47
  4. Step 4: Simplify right side
    430,254.05x = 105,865,217,451.15
  5. Step 5: Solve for x
    x = 105,865,217,451.15/430,254.05
  6. Step 6: Final answer
    x = 246,052.81

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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.