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Finding the Fourth Proportional to 359,285.40, 538,884.90 and 148,901.40

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Solution

The fourth proportional to 359,285.40, 538,884.90 and 148,901.40 is: 223,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,285.40 : 538,884.90 = 148,901.40 : x
  2. Step 2: Convert to fraction form
    359,285.40/538,884.90 = 148,901.40/x
  3. Step 3: Cross multiply
    359,285.40x = 538,884.90 × 148,901.40
  4. Step 4: Simplify right side
    359,285.40x = 80,240,716,048.86
  5. Step 5: Solve for x
    x = 80,240,716,048.86/359,285.40
  6. Step 6: Final answer
    x = 223,334.20

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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.