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Finding the Fourth Proportional to 359,357.80, 537,999.90 and 219,389.80

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Solution

The fourth proportional to 359,357.80, 537,999.90 and 219,389.80 is: 328,451.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,357.80 : 537,999.90 = 219,389.80 : x
  2. Step 2: Convert to fraction form
    359,357.80/537,999.90 = 219,389.80/x
  3. Step 3: Cross multiply
    359,357.80x = 537,999.90 × 219,389.80
  4. Step 4: Simplify right side
    359,357.80x = 118,031,690,461.02
  5. Step 5: Solve for x
    x = 118,031,690,461.02/359,357.80
  6. Step 6: Final answer
    x = 328,451.73

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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.