Home / 209,259.04-288,840.72-142,229.92

Finding the Fourth Proportional to 209,259.04, 288,840.72 and 142,229.92

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Solution

The fourth proportional to 209,259.04, 288,840.72 and 142,229.92 is: 196,320.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,259.04 : 288,840.72 = 142,229.92 : x
  2. Step 2: Convert to fraction form
    209,259.04/288,840.72 = 142,229.92/x
  3. Step 3: Cross multiply
    209,259.04x = 288,840.72 × 142,229.92
  4. Step 4: Simplify right side
    209,259.04x = 41,081,792,498.34
  5. Step 5: Solve for x
    x = 41,081,792,498.34/209,259.04
  6. Step 6: Final answer
    x = 196,320.28

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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.