Home / 268,947.60-403,421.40-137,875.60

Finding the Fourth Proportional to 268,947.60, 403,421.40 and 137,875.60

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Solution

The fourth proportional to 268,947.60, 403,421.40 and 137,875.60 is: 206,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,947.60 : 403,421.40 = 137,875.60 : x
  2. Step 2: Convert to fraction form
    268,947.60/403,421.40 = 137,875.60/x
  3. Step 3: Cross multiply
    268,947.60x = 403,421.40 × 137,875.60
  4. Step 4: Simplify right side
    268,947.60x = 55,621,967,577.84
  5. Step 5: Solve for x
    x = 55,621,967,577.84/268,947.60
  6. Step 6: Final answer
    x = 206,813.40

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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.