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Finding the Fourth Proportional to 542,117.06, 813,215.54 and 142,755.06

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Solution

The fourth proportional to 542,117.06, 813,215.54 and 142,755.06 is: 214,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,117.06 : 813,215.54 = 142,755.06 : x
  2. Step 2: Convert to fraction form
    542,117.06/813,215.54 = 142,755.06/x
  3. Step 3: Cross multiply
    542,117.06x = 813,215.54 × 142,755.06
  4. Step 4: Simplify right side
    542,117.06x = 116,090,633,205.63
  5. Step 5: Solve for x
    x = 116,090,633,205.63/542,117.06
  6. Step 6: Final answer
    x = 214,143.11

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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.