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Finding the Fourth Proportional to 346,987.96, 478,847.14 and 203,749.72

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Solution

The fourth proportional to 346,987.96, 478,847.14 and 203,749.72 is: 281,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,987.96 : 478,847.14 = 203,749.72 : x
  2. Step 2: Convert to fraction form
    346,987.96/478,847.14 = 203,749.72/x
  3. Step 3: Cross multiply
    346,987.96x = 478,847.14 × 203,749.72
  4. Step 4: Simplify right side
    346,987.96x = 97,564,970,697.80
  5. Step 5: Solve for x
    x = 97,564,970,697.80/346,987.96
  6. Step 6: Final answer
    x = 281,176.82

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1.5x scale

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.