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Finding the Fourth Proportional to 254,225.20, 381,775.20 and 165,870.40

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Solution

The fourth proportional to 254,225.20, 381,775.20 and 165,870.40 is: 249,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,225.20 : 381,775.20 = 165,870.40 : x
  2. Step 2: Convert to fraction form
    254,225.20/381,775.20 = 165,870.40/x
  3. Step 3: Cross multiply
    254,225.20x = 381,775.20 × 165,870.40
  4. Step 4: Simplify right side
    254,225.20x = 63,325,205,134.08
  5. Step 5: Solve for x
    x = 63,325,205,134.08/254,225.20
  6. Step 6: Final answer
    x = 249,090.98

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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.