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Finding the Fourth Proportional to 581,725.80, 872,588.70 and 155,260.80

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Solution

The fourth proportional to 581,725.80, 872,588.70 and 155,260.80 is: 232,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,725.80 : 872,588.70 = 155,260.80 : x
  2. Step 2: Convert to fraction form
    581,725.80/872,588.70 = 155,260.80/x
  3. Step 3: Cross multiply
    581,725.80x = 872,588.70 × 155,260.80
  4. Step 4: Simplify right side
    581,725.80x = 135,478,819,632.96
  5. Step 5: Solve for x
    x = 135,478,819,632.96/581,725.80
  6. Step 6: Final answer
    x = 232,891.20

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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.