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Finding the Fourth Proportional to 436,830.54, 655,344.10 and 170,666.98

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Solution

The fourth proportional to 436,830.54, 655,344.10 and 170,666.98 is: 256,038.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,830.54 : 655,344.10 = 170,666.98 : x
  2. Step 2: Convert to fraction form
    436,830.54/655,344.10 = 170,666.98/x
  3. Step 3: Cross multiply
    436,830.54x = 655,344.10 × 170,666.98
  4. Step 4: Simplify right side
    436,830.54x = 111,845,598,407.82
  5. Step 5: Solve for x
    x = 111,845,598,407.82/436,830.54
  6. Step 6: Final answer
    x = 256,038.87

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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.