Home / 326,828.70-490,417.20-127,155.60

Finding the Fourth Proportional to 326,828.70, 490,417.20 and 127,155.60

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Solution

The fourth proportional to 326,828.70, 490,417.20 and 127,155.60 is: 190,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,828.70 : 490,417.20 = 127,155.60 : x
  2. Step 2: Convert to fraction form
    326,828.70/490,417.20 = 127,155.60/x
  3. Step 3: Cross multiply
    326,828.70x = 490,417.20 × 127,155.60
  4. Step 4: Simplify right side
    326,828.70x = 62,359,293,316.32
  5. Step 5: Solve for x
    x = 62,359,293,316.32/326,828.70
  6. Step 6: Final answer
    x = 190,801.15

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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.