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Finding the Fourth Proportional to 330,177.70, 495,266.55 and 307,870.30

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Solution

The fourth proportional to 330,177.70, 495,266.55 and 307,870.30 is: 461,805.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,177.70 : 495,266.55 = 307,870.30 : x
  2. Step 2: Convert to fraction form
    330,177.70/495,266.55 = 307,870.30/x
  3. Step 3: Cross multiply
    330,177.70x = 495,266.55 × 307,870.30
  4. Step 4: Simplify right side
    330,177.70x = 152,477,861,328.47
  5. Step 5: Solve for x
    x = 152,477,861,328.47/330,177.70
  6. Step 6: Final answer
    x = 461,805.45

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1.5x scale

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.