Home / 219,222.54-302,577.66-128,607.62

Finding the Fourth Proportional to 219,222.54, 302,577.66 and 128,607.62

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Solution

The fourth proportional to 219,222.54, 302,577.66 and 128,607.62 is: 177,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,222.54 : 302,577.66 = 128,607.62 : x
  2. Step 2: Convert to fraction form
    219,222.54/302,577.66 = 128,607.62/x
  3. Step 3: Cross multiply
    219,222.54x = 302,577.66 × 128,607.62
  4. Step 4: Simplify right side
    219,222.54x = 38,913,791,204.88
  5. Step 5: Solve for x
    x = 38,913,791,204.88/219,222.54
  6. Step 6: Final answer
    x = 177,508.17

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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.