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Finding the Fourth Proportional to 292,457.20, 438,467.10 and 159,487.60

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Solution

The fourth proportional to 292,457.20, 438,467.10 and 159,487.60 is: 239,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,457.20 : 438,467.10 = 159,487.60 : x
  2. Step 2: Convert to fraction form
    292,457.20/438,467.10 = 159,487.60/x
  3. Step 3: Cross multiply
    292,457.20x = 438,467.10 × 159,487.60
  4. Step 4: Simplify right side
    292,457.20x = 69,930,065,457.96
  5. Step 5: Solve for x
    x = 69,930,065,457.96/292,457.20
  6. Step 6: Final answer
    x = 239,112.13

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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.