Home / 219,313.60-328,970.40-126,001.60

Finding the Fourth Proportional to 219,313.60, 328,970.40 and 126,001.60

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Solution

The fourth proportional to 219,313.60, 328,970.40 and 126,001.60 is: 189,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,313.60 : 328,970.40 = 126,001.60 : x
  2. Step 2: Convert to fraction form
    219,313.60/328,970.40 = 126,001.60/x
  3. Step 3: Cross multiply
    219,313.60x = 328,970.40 × 126,001.60
  4. Step 4: Simplify right side
    219,313.60x = 41,450,796,752.64
  5. Step 5: Solve for x
    x = 41,450,796,752.64/219,313.60
  6. Step 6: Final answer
    x = 189,002.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.