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Finding the Fourth Proportional to 424,802.40, 637,232.40 and 144,340.80

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Solution

The fourth proportional to 424,802.40, 637,232.40 and 144,340.80 is: 216,520.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,802.40 : 637,232.40 = 144,340.80 : x
  2. Step 2: Convert to fraction form
    424,802.40/637,232.40 = 144,340.80/x
  3. Step 3: Cross multiply
    424,802.40x = 637,232.40 × 144,340.80
  4. Step 4: Simplify right side
    424,802.40x = 91,978,634,401.92
  5. Step 5: Solve for x
    x = 91,978,634,401.92/424,802.40
  6. Step 6: Final answer
    x = 216,520.99

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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.