Home / 282,804.35-390,285.77-155,506.37

Finding the Fourth Proportional to 282,804.35, 390,285.77 and 155,506.37

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Solution

The fourth proportional to 282,804.35, 390,285.77 and 155,506.37 is: 214,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,804.35 : 390,285.77 = 155,506.37 : x
  2. Step 2: Convert to fraction form
    282,804.35/390,285.77 = 155,506.37/x
  3. Step 3: Cross multiply
    282,804.35x = 390,285.77 × 155,506.37
  4. Step 4: Simplify right side
    282,804.35x = 60,691,920,626.39
  5. Step 5: Solve for x
    x = 60,691,920,626.39/282,804.35
  6. Step 6: Final answer
    x = 214,607.45

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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.