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Finding the Fourth Proportional to 207,572.56, 286,457.20 and 122,762.32

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Solution

The fourth proportional to 207,572.56, 286,457.20 and 122,762.32 is: 169,416.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,572.56 : 286,457.20 = 122,762.32 : x
  2. Step 2: Convert to fraction form
    207,572.56/286,457.20 = 122,762.32/x
  3. Step 3: Cross multiply
    207,572.56x = 286,457.20 × 122,762.32
  4. Step 4: Simplify right side
    207,572.56x = 35,166,150,452.70
  5. Step 5: Solve for x
    x = 35,166,150,452.70/207,572.56
  6. Step 6: Final answer
    x = 169,416.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.