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Finding the Fourth Proportional to 581,511, 872,266.50 and 155,048.28

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Solution

The fourth proportional to 581,511, 872,266.50 and 155,048.28 is: 232,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,511 : 872,266.50 = 155,048.28 : x
  2. Step 2: Convert to fraction form
    581,511/872,266.50 = 155,048.28/x
  3. Step 3: Cross multiply
    581,511x = 872,266.50 × 155,048.28
  4. Step 4: Simplify right side
    581,511x = 135,243,420,526.62
  5. Step 5: Solve for x
    x = 135,243,420,526.62/581,511
  6. Step 6: Final answer
    x = 232,572.42

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Similar ratio
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1.5x scale

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.