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Finding the Fourth Proportional to 442,078.64, 662,645.81 and 252,130.06

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Solution

The fourth proportional to 442,078.64, 662,645.81 and 252,130.06 is: 377,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,078.64 : 662,645.81 = 252,130.06 : x
  2. Step 2: Convert to fraction form
    442,078.64/662,645.81 = 252,130.06/x
  3. Step 3: Cross multiply
    442,078.64x = 662,645.81 × 252,130.06
  4. Step 4: Simplify right side
    442,078.64x = 167,072,926,807.76
  5. Step 5: Solve for x
    x = 167,072,926,807.76/442,078.64
  6. Step 6: Final answer
    x = 377,925.81

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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.