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Finding the Fourth Proportional to 251,201.60, 376,802.40 and 103,457.60

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Solution

The fourth proportional to 251,201.60, 376,802.40 and 103,457.60 is: 155,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,201.60 : 376,802.40 = 103,457.60 : x
  2. Step 2: Convert to fraction form
    251,201.60/376,802.40 = 103,457.60/x
  3. Step 3: Cross multiply
    251,201.60x = 376,802.40 × 103,457.60
  4. Step 4: Simplify right side
    251,201.60x = 38,983,071,978.24
  5. Step 5: Solve for x
    x = 38,983,071,978.24/251,201.60
  6. Step 6: Final answer
    x = 155,186.40

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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.