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Finding the Fourth Proportional to 424,914.40, 637,400.40 and 144,452.80

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Solution

The fourth proportional to 424,914.40, 637,400.40 and 144,452.80 is: 216,688.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,914.40 : 637,400.40 = 144,452.80 : x
  2. Step 2: Convert to fraction form
    424,914.40/637,400.40 = 144,452.80/x
  3. Step 3: Cross multiply
    424,914.40x = 637,400.40 × 144,452.80
  4. Step 4: Simplify right side
    424,914.40x = 92,074,272,501.12
  5. Step 5: Solve for x
    x = 92,074,272,501.12/424,914.40
  6. Step 6: Final answer
    x = 216,688.99

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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.