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Finding the Fourth Proportional to 362,510.40, 542,690.40 and 269,428.80

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Solution

The fourth proportional to 362,510.40, 542,690.40 and 269,428.80 is: 403,344.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,510.40 : 542,690.40 = 269,428.80 : x
  2. Step 2: Convert to fraction form
    362,510.40/542,690.40 = 269,428.80/x
  3. Step 3: Cross multiply
    362,510.40x = 542,690.40 × 269,428.80
  4. Step 4: Simplify right side
    362,510.40x = 146,216,423,243.52
  5. Step 5: Solve for x
    x = 146,216,423,243.52/362,510.40
  6. Step 6: Final answer
    x = 403,344.08

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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.