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Finding the Fourth Proportional to 330,436.96, 495,655.80 and 90,552.91

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Solution

The fourth proportional to 330,436.96, 495,655.80 and 90,552.91 is: 135,829.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,436.96 : 495,655.80 = 90,552.91 : x
  2. Step 2: Convert to fraction form
    330,436.96/495,655.80 = 90,552.91/x
  3. Step 3: Cross multiply
    330,436.96x = 495,655.80 × 90,552.91
  4. Step 4: Simplify right side
    330,436.96x = 44,883,075,048.38
  5. Step 5: Solve for x
    x = 44,883,075,048.38/330,436.96
  6. Step 6: Final answer
    x = 135,829.46

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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.