Home / 255,909.43-353,155.05-142,732.18

Finding the Fourth Proportional to 255,909.43, 353,155.05 and 142,732.18

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Solution

The fourth proportional to 255,909.43, 353,155.05 and 142,732.18 is: 196,970.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,909.43 : 353,155.05 = 142,732.18 : x
  2. Step 2: Convert to fraction form
    255,909.43/353,155.05 = 142,732.18/x
  3. Step 3: Cross multiply
    255,909.43x = 353,155.05 × 142,732.18
  4. Step 4: Simplify right side
    255,909.43x = 50,406,590,164.51
  5. Step 5: Solve for x
    x = 50,406,590,164.51/255,909.43
  6. Step 6: Final answer
    x = 196,970.43

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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.