Home / 282,430.69-389,753.90-155,106.29

Finding the Fourth Proportional to 282,430.69, 389,753.90 and 155,106.29

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Solution

The fourth proportional to 282,430.69, 389,753.90 and 155,106.29 is: 214,046.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,430.69 : 389,753.90 = 155,106.29 : x
  2. Step 2: Convert to fraction form
    282,430.69/389,753.90 = 155,106.29/x
  3. Step 3: Cross multiply
    282,430.69x = 389,753.90 × 155,106.29
  4. Step 4: Simplify right side
    282,430.69x = 60,453,281,442.03
  5. Step 5: Solve for x
    x = 60,453,281,442.03/282,430.69
  6. Step 6: Final answer
    x = 214,046.43

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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.