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Finding the Fourth Proportional to 581,420.28, 872,262.05 and 202,358.91

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Solution

The fourth proportional to 581,420.28, 872,262.05 and 202,358.91 is: 303,584.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,420.28 : 872,262.05 = 202,358.91 : x
  2. Step 2: Convert to fraction form
    581,420.28/872,262.05 = 202,358.91/x
  3. Step 3: Cross multiply
    581,420.28x = 872,262.05 × 202,358.91
  4. Step 4: Simplify right side
    581,420.28x = 176,509,997,672.37
  5. Step 5: Solve for x
    x = 176,509,997,672.37/581,420.28
  6. Step 6: Final answer
    x = 303,584.18

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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.