Home / 338,128.40-506,998.20-101,435.60

Finding the Fourth Proportional to 338,128.40, 506,998.20 and 101,435.60

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Solution

The fourth proportional to 338,128.40, 506,998.20 and 101,435.60 is: 152,095.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,128.40 : 506,998.20 = 101,435.60 : x
  2. Step 2: Convert to fraction form
    338,128.40/506,998.20 = 101,435.60/x
  3. Step 3: Cross multiply
    338,128.40x = 506,998.20 × 101,435.60
  4. Step 4: Simplify right side
    338,128.40x = 51,427,666,615.92
  5. Step 5: Solve for x
    x = 51,427,666,615.92/338,128.40
  6. Step 6: Final answer
    x = 152,095.08

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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.