Home / 282,429.81-389,755.67-155,106.32

Finding the Fourth Proportional to 282,429.81, 389,755.67 and 155,106.32

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Solution

The fourth proportional to 282,429.81, 389,755.67 and 155,106.32 is: 214,048.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,429.81 : 389,755.67 = 155,106.32 : x
  2. Step 2: Convert to fraction form
    282,429.81/389,755.67 = 155,106.32/x
  3. Step 3: Cross multiply
    282,429.81x = 389,755.67 × 155,106.32
  4. Step 4: Simplify right side
    282,429.81x = 60,453,564,948.52
  5. Step 5: Solve for x
    x = 60,453,564,948.52/282,429.81
  6. Step 6: Final answer
    x = 214,048.10

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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.