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Finding the Fourth Proportional to 291,508.79, 437,263.19 and 166,762.31

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Solution

The fourth proportional to 291,508.79, 437,263.19 and 166,762.31 is: 250,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,508.79 : 437,263.19 = 166,762.31 : x
  2. Step 2: Convert to fraction form
    291,508.79/437,263.19 = 166,762.31/x
  3. Step 3: Cross multiply
    291,508.79x = 437,263.19 × 166,762.31
  4. Step 4: Simplify right side
    291,508.79x = 72,919,019,642.37
  5. Step 5: Solve for x
    x = 72,919,019,642.37/291,508.79
  6. Step 6: Final answer
    x = 250,143.47

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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.