Home / 219,125.04-302,386.40-123,640.62

Finding the Fourth Proportional to 219,125.04, 302,386.40 and 123,640.62

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Solution

The fourth proportional to 219,125.04, 302,386.40 and 123,640.62 is: 170,620.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,125.04 : 302,386.40 = 123,640.62 : x
  2. Step 2: Convert to fraction form
    219,125.04/302,386.40 = 123,640.62/x
  3. Step 3: Cross multiply
    219,125.04x = 302,386.40 × 123,640.62
  4. Step 4: Simplify right side
    219,125.04x = 37,387,241,975.57
  5. Step 5: Solve for x
    x = 37,387,241,975.57/219,125.04
  6. Step 6: Final answer
    x = 170,620.58

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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.