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Finding the Fourth Proportional to 288,368.20, 432,422.70 and 110,816.20

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Solution

The fourth proportional to 288,368.20, 432,422.70 and 110,816.20 is: 166,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,368.20 : 432,422.70 = 110,816.20 : x
  2. Step 2: Convert to fraction form
    288,368.20/432,422.70 = 110,816.20/x
  3. Step 3: Cross multiply
    288,368.20x = 432,422.70 × 110,816.20
  4. Step 4: Simplify right side
    288,368.20x = 47,919,440,407.74
  5. Step 5: Solve for x
    x = 47,919,440,407.74/288,368.20
  6. Step 6: Final answer
    x = 166,174.50

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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.