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Finding the Fourth Proportional to 478,094.40, 717,167.52 and 178,653.60

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Solution

The fourth proportional to 478,094.40, 717,167.52 and 178,653.60 is: 267,990.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,094.40 : 717,167.52 = 178,653.60 : x
  2. Step 2: Convert to fraction form
    478,094.40/717,167.52 = 178,653.60/x
  3. Step 3: Cross multiply
    478,094.40x = 717,167.52 × 178,653.60
  4. Step 4: Simplify right side
    478,094.40x = 128,124,559,251.07
  5. Step 5: Solve for x
    x = 128,124,559,251.07/478,094.40
  6. Step 6: Final answer
    x = 267,990.09

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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.