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Finding the Fourth Proportional to 292,827.40, 439,241.10 and 135,363.40

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Solution

The fourth proportional to 292,827.40, 439,241.10 and 135,363.40 is: 203,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,827.40 : 439,241.10 = 135,363.40 : x
  2. Step 2: Convert to fraction form
    292,827.40/439,241.10 = 135,363.40/x
  3. Step 3: Cross multiply
    292,827.40x = 439,241.10 × 135,363.40
  4. Step 4: Simplify right side
    292,827.40x = 59,457,168,715.74
  5. Step 5: Solve for x
    x = 59,457,168,715.74/292,827.40
  6. Step 6: Final answer
    x = 203,045.10

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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.