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Finding the Fourth Proportional to 255,229.99, 380,225.80 and 243,715.43

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Solution

The fourth proportional to 255,229.99, 380,225.80 and 243,715.43 is: 363,072.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,229.99 : 380,225.80 = 243,715.43 : x
  2. Step 2: Convert to fraction form
    255,229.99/380,225.80 = 243,715.43/x
  3. Step 3: Cross multiply
    255,229.99x = 380,225.80 × 243,715.43
  4. Step 4: Simplify right side
    255,229.99x = 92,666,894,228.40
  5. Step 5: Solve for x
    x = 92,666,894,228.40/255,229.99
  6. Step 6: Final answer
    x = 363,072.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.