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Finding the Fourth Proportional to 251,133.40, 376,991.70 and 144,602.20

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Solution

The fourth proportional to 251,133.40, 376,991.70 and 144,602.20 is: 217,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,133.40 : 376,991.70 = 144,602.20 : x
  2. Step 2: Convert to fraction form
    251,133.40/376,991.70 = 144,602.20/x
  3. Step 3: Cross multiply
    251,133.40x = 376,991.70 × 144,602.20
  4. Step 4: Simplify right side
    251,133.40x = 54,513,829,201.74
  5. Step 5: Solve for x
    x = 54,513,829,201.74/251,133.40
  6. Step 6: Final answer
    x = 217,071.20

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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.