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Finding the Fourth Proportional to 368,851.60, 553,277.40 and 268,541.20

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Solution

The fourth proportional to 368,851.60, 553,277.40 and 268,541.20 is: 402,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,851.60 : 553,277.40 = 268,541.20 : x
  2. Step 2: Convert to fraction form
    368,851.60/553,277.40 = 268,541.20/x
  3. Step 3: Cross multiply
    368,851.60x = 553,277.40 × 268,541.20
  4. Step 4: Simplify right side
    368,851.60x = 148,577,776,928.88
  5. Step 5: Solve for x
    x = 148,577,776,928.88/368,851.60
  6. Step 6: Final answer
    x = 402,811.80

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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.