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Finding the Fourth Proportional to 291,320.73, 402,030.06 and 164,000.79

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Solution

The fourth proportional to 291,320.73, 402,030.06 and 164,000.79 is: 226,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,320.73 : 402,030.06 = 164,000.79 : x
  2. Step 2: Convert to fraction form
    291,320.73/402,030.06 = 164,000.79/x
  3. Step 3: Cross multiply
    291,320.73x = 402,030.06 × 164,000.79
  4. Step 4: Simplify right side
    291,320.73x = 65,933,247,443.75
  5. Step 5: Solve for x
    x = 65,933,247,443.75/291,320.73
  6. Step 6: Final answer
    x = 226,325.29

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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.