Home / 282,281.50-389,553.04-153,222.54

Finding the Fourth Proportional to 282,281.50, 389,553.04 and 153,222.54

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Solution

The fourth proportional to 282,281.50, 389,553.04 and 153,222.54 is: 211,449.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,281.50 : 389,553.04 = 153,222.54 : x
  2. Step 2: Convert to fraction form
    282,281.50/389,553.04 = 153,222.54/x
  3. Step 3: Cross multiply
    282,281.50x = 389,553.04 × 153,222.54
  4. Step 4: Simplify right side
    282,281.50x = 59,688,306,253.52
  5. Step 5: Solve for x
    x = 59,688,306,253.52/282,281.50
  6. Step 6: Final answer
    x = 211,449.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.