Home / 308,280.23-462,420.57-83,640.65

Finding the Fourth Proportional to 308,280.23, 462,420.57 and 83,640.65

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Solution

The fourth proportional to 308,280.23, 462,420.57 and 83,640.65 is: 125,461.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,280.23 : 462,420.57 = 83,640.65 : x
  2. Step 2: Convert to fraction form
    308,280.23/462,420.57 = 83,640.65/x
  3. Step 3: Cross multiply
    308,280.23x = 462,420.57 × 83,640.65
  4. Step 4: Simplify right side
    308,280.23x = 38,677,157,048.17
  5. Step 5: Solve for x
    x = 38,677,157,048.17/308,280.23
  6. Step 6: Final answer
    x = 125,461.04

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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.