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Finding the Fourth Proportional to 542,747.40, 813,975.30 and 187,870.20

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Solution

The fourth proportional to 542,747.40, 813,975.30 and 187,870.20 is: 281,754.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,747.40 : 813,975.30 = 187,870.20 : x
  2. Step 2: Convert to fraction form
    542,747.40/813,975.30 = 187,870.20/x
  3. Step 3: Cross multiply
    542,747.40x = 813,975.30 × 187,870.20
  4. Step 4: Simplify right side
    542,747.40x = 152,921,702,406.06
  5. Step 5: Solve for x
    x = 152,921,702,406.06/542,747.40
  6. Step 6: Final answer
    x = 281,754.83

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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.