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Finding the Fourth Proportional to 359,346.80, 537,983.40 and 219,378.80

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Solution

The fourth proportional to 359,346.80, 537,983.40 and 219,378.80 is: 328,435.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,346.80 : 537,983.40 = 219,378.80 : x
  2. Step 2: Convert to fraction form
    359,346.80/537,983.40 = 219,378.80/x
  3. Step 3: Cross multiply
    359,346.80x = 537,983.40 × 219,378.80
  4. Step 4: Simplify right side
    359,346.80x = 118,022,152,711.92
  5. Step 5: Solve for x
    x = 118,022,152,711.92/359,346.80
  6. Step 6: Final answer
    x = 328,435.24

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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.