Home / 388,828.80-583,243.20-310,096.80

Finding the Fourth Proportional to 388,828.80, 583,243.20 and 310,096.80

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Solution

The fourth proportional to 388,828.80, 583,243.20 and 310,096.80 is: 465,145.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,828.80 : 583,243.20 = 310,096.80 : x
  2. Step 2: Convert to fraction form
    388,828.80/583,243.20 = 310,096.80/x
  3. Step 3: Cross multiply
    388,828.80x = 583,243.20 × 310,096.80
  4. Step 4: Simplify right side
    388,828.80x = 180,861,849,941.76
  5. Step 5: Solve for x
    x = 180,861,849,941.76/388,828.80
  6. Step 6: Final answer
    x = 465,145.20

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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.