Home / 219,430.90-302,935.16-137,844.25

Finding the Fourth Proportional to 219,430.90, 302,935.16 and 137,844.25

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Solution

The fourth proportional to 219,430.90, 302,935.16 and 137,844.25 is: 190,300.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,430.90 : 302,935.16 = 137,844.25 : x
  2. Step 2: Convert to fraction form
    219,430.90/302,935.16 = 137,844.25/x
  3. Step 3: Cross multiply
    219,430.90x = 302,935.16 × 137,844.25
  4. Step 4: Simplify right side
    219,430.90x = 41,757,869,928.83
  5. Step 5: Solve for x
    x = 41,757,869,928.83/219,430.90
  6. Step 6: Final answer
    x = 190,300.77

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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.