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Finding the Fourth Proportional to 359,347.60, 539,021.40 and 330,317.20

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Solution

The fourth proportional to 359,347.60, 539,021.40 and 330,317.20 is: 495,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,347.60 : 539,021.40 = 330,317.20 : x
  2. Step 2: Convert to fraction form
    359,347.60/539,021.40 = 330,317.20/x
  3. Step 3: Cross multiply
    359,347.60x = 539,021.40 × 330,317.20
  4. Step 4: Simplify right side
    359,347.60x = 178,048,039,588.08
  5. Step 5: Solve for x
    x = 178,048,039,588.08/359,347.60
  6. Step 6: Final answer
    x = 495,475.80

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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.