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Finding the Fourth Proportional to 254,276.31, 350,905.76 and 139,565.68

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Solution

The fourth proportional to 254,276.31, 350,905.76 and 139,565.68 is: 192,603.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,276.31 : 350,905.76 = 139,565.68 : x
  2. Step 2: Convert to fraction form
    254,276.31/350,905.76 = 139,565.68/x
  3. Step 3: Cross multiply
    254,276.31x = 350,905.76 × 139,565.68
  4. Step 4: Simplify right side
    254,276.31x = 48,974,400,312.49
  5. Step 5: Solve for x
    x = 48,974,400,312.49/254,276.31
  6. Step 6: Final answer
    x = 192,603.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.