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Finding the Fourth Proportional to 292,276.60, 437,540.10 and 260,783.80

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Solution

The fourth proportional to 292,276.60, 437,540.10 and 260,783.80 is: 390,395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,276.60 : 437,540.10 = 260,783.80 : x
  2. Step 2: Convert to fraction form
    292,276.60/437,540.10 = 260,783.80/x
  3. Step 3: Cross multiply
    292,276.60x = 437,540.10 × 260,783.80
  4. Step 4: Simplify right side
    292,276.60x = 114,103,369,930.38
  5. Step 5: Solve for x
    x = 114,103,369,930.38/292,276.60
  6. Step 6: Final answer
    x = 390,395.16

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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.