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Finding the Fourth Proportional to 288,205.20, 432,307.80 and 101,216.70

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Solution

The fourth proportional to 288,205.20, 432,307.80 and 101,216.70 is: 151,825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,205.20 : 432,307.80 = 101,216.70 : x
  2. Step 2: Convert to fraction form
    288,205.20/432,307.80 = 101,216.70/x
  3. Step 3: Cross multiply
    288,205.20x = 432,307.80 × 101,216.70
  4. Step 4: Simplify right side
    288,205.20x = 43,756,768,900.26
  5. Step 5: Solve for x
    x = 43,756,768,900.26/288,205.20
  6. Step 6: Final answer
    x = 151,825.05

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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.