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Finding the Fourth Proportional to 330,642.84, 495,777.48 and 302,430.52

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Solution

The fourth proportional to 330,642.84, 495,777.48 and 302,430.52 is: 453,474.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,642.84 : 495,777.48 = 302,430.52 : x
  2. Step 2: Convert to fraction form
    330,642.84/495,777.48 = 302,430.52/x
  3. Step 3: Cross multiply
    330,642.84x = 495,777.48 × 302,430.52
  4. Step 4: Simplify right side
    330,642.84x = 149,938,241,080.69
  5. Step 5: Solve for x
    x = 149,938,241,080.69/330,642.84
  6. Step 6: Final answer
    x = 453,474.94

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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.