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Finding the Fourth Proportional to 364,403.20, 545,683.20 and 290,675.20

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Solution

The fourth proportional to 364,403.20, 545,683.20 and 290,675.20 is: 435,277.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,403.20 : 545,683.20 = 290,675.20 : x
  2. Step 2: Convert to fraction form
    364,403.20/545,683.20 = 290,675.20/x
  3. Step 3: Cross multiply
    364,403.20x = 545,683.20 × 290,675.20
  4. Step 4: Simplify right side
    364,403.20x = 158,616,573,296.64
  5. Step 5: Solve for x
    x = 158,616,573,296.64/364,403.20
  6. Step 6: Final answer
    x = 435,277.66

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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.