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Finding the Fourth Proportional to 901.58, 1,352.57 and 353.61

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Solution

The fourth proportional to 901.58, 1,352.57 and 353.61 is: 530.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.58 : 1,352.57 = 353.61 : x
  2. Step 2: Convert to fraction form
    901.58/1,352.57 = 353.61/x
  3. Step 3: Cross multiply
    901.58x = 1,352.57 × 353.61
  4. Step 4: Simplify right side
    901.58x = 478,280.51
  5. Step 5: Solve for x
    x = 478,280.51/901.58
  6. Step 6: Final answer
    x = 530.49

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Double scale
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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.