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Finding the Fourth Proportional to 268,827.60, 403,460.10 and 260,079.60

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Solution

The fourth proportional to 268,827.60, 403,460.10 and 260,079.60 is: 390,330.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,827.60 : 403,460.10 = 260,079.60 : x
  2. Step 2: Convert to fraction form
    268,827.60/403,460.10 = 260,079.60/x
  3. Step 3: Cross multiply
    268,827.60x = 403,460.10 × 260,079.60
  4. Step 4: Simplify right side
    268,827.60x = 104,931,741,423.96
  5. Step 5: Solve for x
    x = 104,931,741,423.96/268,827.60
  6. Step 6: Final answer
    x = 390,330.98

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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.