Home / 219,081.18-302,142.76-142,572.74

Finding the Fourth Proportional to 219,081.18, 302,142.76 and 142,572.74

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Solution

The fourth proportional to 219,081.18, 302,142.76 and 142,572.74 is: 196,627.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,081.18 : 302,142.76 = 142,572.74 : x
  2. Step 2: Convert to fraction form
    219,081.18/302,142.76 = 142,572.74/x
  3. Step 3: Cross multiply
    219,081.18x = 302,142.76 × 142,572.74
  4. Step 4: Simplify right side
    219,081.18x = 43,077,320,451.50
  5. Step 5: Solve for x
    x = 43,077,320,451.50/219,081.18
  6. Step 6: Final answer
    x = 196,627.21

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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.