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Finding the Fourth Proportional to 478,102.95, 717,071.31 and 178,586.10

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Solution

The fourth proportional to 478,102.95, 717,071.31 and 178,586.10 is: 267,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,102.95 : 717,071.31 = 178,586.10 : x
  2. Step 2: Convert to fraction form
    478,102.95/717,071.31 = 178,586.10/x
  3. Step 3: Cross multiply
    478,102.95x = 717,071.31 × 178,586.10
  4. Step 4: Simplify right side
    478,102.95x = 128,058,968,674.79
  5. Step 5: Solve for x
    x = 128,058,968,674.79/478,102.95
  6. Step 6: Final answer
    x = 267,848.10

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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.