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Finding the Fourth Proportional to 251,444.40, 377,166.60 and 145,156.20

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Solution

The fourth proportional to 251,444.40, 377,166.60 and 145,156.20 is: 217,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,444.40 : 377,166.60 = 145,156.20 : x
  2. Step 2: Convert to fraction form
    251,444.40/377,166.60 = 145,156.20/x
  3. Step 3: Cross multiply
    251,444.40x = 377,166.60 × 145,156.20
  4. Step 4: Simplify right side
    251,444.40x = 54,748,070,422.92
  5. Step 5: Solve for x
    x = 54,748,070,422.92/251,444.40
  6. Step 6: Final answer
    x = 217,734.30

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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.