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Finding the Fourth Proportional to 221,448.40, 332,011.68 and 88,288.72

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Solution

The fourth proportional to 221,448.40, 332,011.68 and 88,288.72 is: 132,368.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,448.40 : 332,011.68 = 88,288.72 : x
  2. Step 2: Convert to fraction form
    221,448.40/332,011.68 = 88,288.72/x
  3. Step 3: Cross multiply
    221,448.40x = 332,011.68 × 88,288.72
  4. Step 4: Simplify right side
    221,448.40x = 29,312,887,303.00
  5. Step 5: Solve for x
    x = 29,312,887,303.00/221,448.40
  6. Step 6: Final answer
    x = 132,368.93

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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.