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Finding the Fourth Proportional to 320,368.95, 480,502.98 and 107,135.22

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Solution

The fourth proportional to 320,368.95, 480,502.98 and 107,135.22 is: 160,685.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,368.95 : 480,502.98 = 107,135.22 : x
  2. Step 2: Convert to fraction form
    320,368.95/480,502.98 = 107,135.22/x
  3. Step 3: Cross multiply
    320,368.95x = 480,502.98 × 107,135.22
  4. Step 4: Simplify right side
    320,368.95x = 51,478,792,472.96
  5. Step 5: Solve for x
    x = 51,478,792,472.96/320,368.95
  6. Step 6: Final answer
    x = 160,685.96

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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.