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Finding the Fourth Proportional to 478,007.17, 717,030.55 and 141,047.81

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Solution

The fourth proportional to 478,007.17, 717,030.55 and 141,047.81 is: 211,577.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,007.17 : 717,030.55 = 141,047.81 : x
  2. Step 2: Convert to fraction form
    478,007.17/717,030.55 = 141,047.81/x
  3. Step 3: Cross multiply
    478,007.17x = 717,030.55 × 141,047.81
  4. Step 4: Simplify right side
    478,007.17x = 101,135,591,300.52
  5. Step 5: Solve for x
    x = 101,135,591,300.52/478,007.17
  6. Step 6: Final answer
    x = 211,577.56

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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.