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Finding the Fourth Proportional to 299,148.85, 411,985.60 and 292,617.01

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Solution

The fourth proportional to 299,148.85, 411,985.60 and 292,617.01 is: 402,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,148.85 : 411,985.60 = 292,617.01 : x
  2. Step 2: Convert to fraction form
    299,148.85/411,985.60 = 292,617.01/x
  3. Step 3: Cross multiply
    299,148.85x = 411,985.60 × 292,617.01
  4. Step 4: Simplify right side
    299,148.85x = 120,553,994,435.06
  5. Step 5: Solve for x
    x = 120,553,994,435.06/299,148.85
  6. Step 6: Final answer
    x = 402,990.00

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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.