Home / 268,455.40-370,522.98-155,290.60

Finding the Fourth Proportional to 268,455.40, 370,522.98 and 155,290.60

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Solution

The fourth proportional to 268,455.40, 370,522.98 and 155,290.60 is: 214,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,455.40 : 370,522.98 = 155,290.60 : x
  2. Step 2: Convert to fraction form
    268,455.40/370,522.98 = 155,290.60/x
  3. Step 3: Cross multiply
    268,455.40x = 370,522.98 × 155,290.60
  4. Step 4: Simplify right side
    268,455.40x = 57,538,735,877.99
  5. Step 5: Solve for x
    x = 57,538,735,877.99/268,455.40
  6. Step 6: Final answer
    x = 214,332.57

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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.