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Finding the Fourth Proportional to 540,369.68, 810,430.58 and 203,445.32

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Solution

The fourth proportional to 540,369.68, 810,430.58 and 203,445.32 is: 305,121.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,369.68 : 810,430.58 = 203,445.32 : x
  2. Step 2: Convert to fraction form
    540,369.68/810,430.58 = 203,445.32/x
  3. Step 3: Cross multiply
    540,369.68x = 810,430.58 × 203,445.32
  4. Step 4: Simplify right side
    540,369.68x = 164,878,308,685.89
  5. Step 5: Solve for x
    x = 164,878,308,685.89/540,369.68
  6. Step 6: Final answer
    x = 305,121.32

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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.