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Finding the Fourth Proportional to 474,975.72, 712,553.22 and 190,688.55

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Solution

The fourth proportional to 474,975.72, 712,553.22 and 190,688.55 is: 286,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,975.72 : 712,553.22 = 190,688.55 : x
  2. Step 2: Convert to fraction form
    474,975.72/712,553.22 = 190,688.55/x
  3. Step 3: Cross multiply
    474,975.72x = 712,553.22 × 190,688.55
  4. Step 4: Simplify right side
    474,975.72x = 135,875,740,319.63
  5. Step 5: Solve for x
    x = 135,875,740,319.63/474,975.72
  6. Step 6: Final answer
    x = 286,068.81

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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.