Home / 430,008.43-645,090.50-177,148.41

Finding the Fourth Proportional to 430,008.43, 645,090.50 and 177,148.41

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Solution

The fourth proportional to 430,008.43, 645,090.50 and 177,148.41 is: 265,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,008.43 : 645,090.50 = 177,148.41 : x
  2. Step 2: Convert to fraction form
    430,008.43/645,090.50 = 177,148.41/x
  3. Step 3: Cross multiply
    430,008.43x = 645,090.50 × 177,148.41
  4. Step 4: Simplify right side
    430,008.43x = 114,276,756,381.11
  5. Step 5: Solve for x
    x = 114,276,756,381.11/430,008.43
  6. Step 6: Final answer
    x = 265,754.69

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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.